Days are getting tough, making money has never been easier this much but more completion in the space making it harder so anyone who wants to make more needs to stand out unless they decide to go illicit ways.

Making money has never been easier? I would disagree with that. Making money last cycle was much easier. You could buy any ridiculous shitcoin and it pumped to the moon.
Yeah, but we are not talking about shitcoins in this here thread. You heard about bitcoin?
Of course.

I was merely using one example to show why I would not consider that the current time to make money is the best. Interest rates are still high, there is no quantitative easy, inflation has been through the roof in recent years. How is this the best time according to the previous user?
I can agree with you that there might be circumstances in which it might not make any difference whether a person puts some marginal extra money into bitcoin or various back up funds such as an emergency fund, yet each of us should not throw up our hands and get sloppy in regards to preparing ourselves for a variety of circumstances including that we should want to avoid selling any bitcoin prior to a time that is completely of our own choosing, and our investment timeline should be 4-10 years or longer until we get into a status of overaccumulation, so if we fuck up our bitcoin investment because we failed/refused to keep sufficient and/or adequate back up funds, then we likely have contributed to our own failures to prosper with one of the best (if not the best) investment that is currently available to everyone and anyone with a discretionary income, even though we still have to manage our discretionary income in ways that help us to invest into bitcoin as aggressively as we are able to do it without over doing it, and if we have failed/refused to adequately establish various back up funds that contribute to our having to sell some or all of our bitcoin, then we are contributing to our own failure.
I think that a lot of people that are complaining about their financial situation are more on the sloppy side primarily in the western world. I know of people that are subscribed to literally every streaming service possible, and people who are paying for subscriptions for services that they don't even remember subscribing too. These are all very wasteful conveniences. Nobody needs this in the sense of that you could switch between 1 service at a time, reduce the time you spend on these things and so forth. It doesn't matter what your income is, you can improve your financial literacy and then use it more wisely. These things really add up fast, to the point where you could be putting a few hundred in BTC and a few hundred in an emergency fund each month instead. This is not the case for a lot of people third world countries of course, where people are barely making ends meet. They would not even be able to do something stupid as to subscribe to many streaming services and other things at the same time.
It only helps you avoid having to sell during a bad time, when your PnL is not good but that is it. Having $100 in an emergency fund or $100 in Bitcoin, there is no real difference if you have to spend that $100.
We are not necessarily talking about $100 since in the beginning if your income might be $900 to $2,400 per month with an average income around $1,400 per month, and your expenses might vary between $500 per month and $1,100 per month, and so on average you have $300 per month that would be your discretionary income, yet you probably would need to have to build up to having $3,300 for your emergency fund to cover 3 months of expenses, and maybe you build your bitcoin up at the same rate, so it might take you a year or more to have your bitcoin and your emergency funds built up to the same rate (or at least the amount that you invested into bitcoin might be the same as the amount of your emergency funds, even though your bitcoin might have grown or shrunk in value during the time of your investing).
Another seeming fault in your thinking is that you seem to be presuming that the amount that you put into your bitcoin will largely hold its value, which truly is not the case, and you might end up getting stuck into a situation of selling your BTC at a time that is not of your own choosing in terms of where the BTC price is at and also in terms of where you might be expecting the bitcoin price to go that includes perhaps considering your initial investment timeline and amount in which you might have goals to want to accumulate 10 years of your expenses at the 200-WMA valuation... in order to reach overaccumulation status.. .which also could take many years to arrive at such status, even if you do everything correctly, and you do not screw up your accumulation along the way due to poor/sloppy cashflow management practices.
In this particular case, I was just using $100 as an example to compare the two and there basically being no difference. For the second part, maybe I didn't express myself clearly but I bolded it now. I have addressed this by saying that the primary difference or benefit is that having these two things completely separate protects you from having to sell BTC at the wrong time. This implies that I don't necessary expect it to hold its value. I have been in this situation before, not having built up enough savings ahead of time and then having to sell stuff at bad prices. Well, I sold some shitcoins instead of my precious BTC. But still it is a lesson that must be learned so that it does not happen again in the future with something more valuable such as BTC.
With that said, still I would opt to have an emergency fund. It is better to have different funds for things and then never to dip in between. So make sure your emergency fund does actually cover emergencies, and is not just a small help.
Each of us is responsible to figure out how large we need our various back up funds to be including our emergency funds that should be built up to be at least 3 months of our expenses, yet if we are new to investing, we may well take some time to build our emergency fund up to our preferred amount, and we may well be gambling with our own bitcoin investment during the time that we are building up our emergency funds, so we have to figure out some reasonable balance, and sure maybe in the beginning our emergency fund is so small, such as 2-6 weeks of our expenses, and so then our bitcoin might also end up serving as our emergency fund too.. until we are able to get our emergency fund up to at least 3 months, and having our emergency fund up to 3 months does not stop us from having and maintaining other kinds of back up funds that go beyond the emergency funds, but our other back up funds would have more flexibility in terms of our choices to use them absent an emergency, yet our emergency funds would ONLY be for actual emergencies.
What I mean to say with this, if you are going to make an emergency fund then do it right. Don't do it just for posturing so that you can tell people online or your friends how you did this, or that you cross of a check list. With that, an emergency fund must be able to properly cover at least some sort of real emergencies. If your emergency fund was $100, what is the point of it? Will it even cover the ambulance ride to the hospital?

As long as it is not impacting your income too much, I think that an emergency fund can never be too big but can only be too small. I do it conservatively like that.
Of course there is some opportunity cost of having too much money sitting there, but who lives life trying to maximize the use of every single dollar? Nobody really, so nothing to be concerned with..