Your explanation is very roundabout and I don't really understand. You mean if investors put their money in Bitcoin and that of course puts their hopes in one bag, is that true?
I think Bitcoin investment is the most appropriate investment and I only focus on Bitcoin investment for my long term investment. Examining an explanation is sometimes difficult to make sense but those words are not intended for Bitcoin holders but shitcoin. If we focus on Bitcoin and make regular purchases, it is better to forget about altcoins or other shitcoins because they will disturb you in the Bitcoin investment journey that you have set in long-term planning.
Keep accumulating Bitcoin whenever you have more money than your income because buying it regularly will make you more confident in being able to hold it for a long time.
I think what @ Roseline492 is saying, isn't to invest in shitcoins, but rather to diversify your investment on other profitable investments including Bitcoin. Yes, Bitcoin investment can produce lots of profit when held for a long term, but you should be aware that since you will hodl for such long time, you might want to invest in other things that might be able to give you profits on the long run. Such investments might be land,or real estate business which we all know that it's value appreciates as development takes place over time. Having such investment along side your Bitcoin investments might be a good planning strategy for an investor. You can purchase more Bitcoin using the annual earnings from such investment and as well solve some other personal expenses that might arise, leaving your Bitcoin investments for fully long term and continuous accumulation.