In a word that I understand, it is best to invest the most in Bitcoin and to trade memecoin or shitcoin. If you are a professional trader and you have enough money then invest or trade on Bitcoin, both are profitable. However, in the case of Shitcoin, it is very risk to trade. If you want to see the market cap, you can invest in many good memecoin if you want to invest them and do short -term. Because Memecoin's market is not always good. And that amount should be invested so that the amount of money is lost but no harm.
This is correct, shitcoins/memecoins are not there for you to invest or trade, if you could trade and do better, then you are going to see profit with a proper coin anyway. Anyone who can make money from memecoins (incredibly rare possibility) could make money from bitcoin too, so there is really no reason why they should invest or trade memecoins.
If you could focus on how to make money with trusted stuff then you are going to get a lot of experience and probably make some good return. I am sure we could probably see things change, and for that to mean anything, then we need to learn and study how to trade/invest and then gain experience all with proper projects. So if the trader wants to deal with memecoins, then it won't be good at all.