Tampering an emergency funds for something that is not an emergency is wrong. Just as the name implies "EMERGENCY". It is meant to cover up expenses that may arise due to unexpectedly in the future.
You are right here and I also share the same sentiment with you bro, emergency funds should only be tempered with when their is a real life emergencies that threatens your Bitcoin investment, not used to accumulate or sort out some needs that doesn't threatens your Bitcoin holdings.
I understand most investors try to be aggressive. However, if they want to be aggressive more into accumulation, it is better if they go get another high paying job, or work extra time,
Being aggressive in your Bitcoin accumulation is not a bad thing if you ask me, it's a very good practice that will make your stash of Bitcoin grow faster especially if you are still lagging behind in your accumulation journey, but it should be done within the confinement of your discretionary income, so that you wouldn't have problems.
Lastly, their is a saying that excess of everything is bad, if you are accumulating Bitcoin aggressively and you are not over doing it or go all in on your investment, then you will be fine, because what's put Bitcoin Investors in difficult state is over doing it to the extent that it became a challenge in meeting up to some basic needs, so if it can be done within the confinement of your discretionary income, then you will be fine.