I agree that limiting the investment into shitcoins as compared with bitcoin to something like 10% is acceptable, yet I don't agree with your assertion that suggests that there is any thing helpful in fucking around with shitcoins.. since you are proclaiming that "it won't hurt" to have up to 10% in various shitcoins.
Of course, you can do whatever you want, but the idea of diversification for the sake of it, seems pretty retarded to me. especially if you might have some clues about what bitcoin is and unless you have some kind of specific reasons to hold any of those shitcoins..
as you may have noticed I suppose allocation 10% of portfolio for assets that now are used for alternative corporate treasuries. many companies are raising hundreds of millions to buy some ETH or SOL and who knows how far this may go. if there were treasuries based only on BTC certainly investing in altcoins wouldn't make sense. of course I don't propose investing in such shitcoins like SHIB, PEPE and many others similar but having some ETH or SOL won't hurt. besides it will be possible to swap them for BTC if they show some kind of abnormal growth. the ultimate goal is to build up more reserves in BTC and if altcoins would help, why not? )