Since you specifically mentioned altcoins only and not just Altcoins but memecoins, I would diversify if only I had invested in them but since I don’t do memecoins or I haven’t started investing them then I will only imagine my actions.

I don’t think I’d want to diversify my portfolio with only memecoins.

When we say diversification, typically it means diversifying through different categories and not just different projects in only one category. I’d definitely invest in bitcoin and then a couple altcoins then maybe one memecoin. That is how I would have diversified my portfolio.