Well, that's your opinion, and it seems that's what your portfolio already looks like, but I don't do alt coins. I prefer Bitcoin, about 80% of my crypto asset is in BTC, while I hold 15% in USDT so that I can buy more Bitcoin when the dip is strong, and then 5% in some random old coin.
I got advice from a friend who's also a crypto enthusiast; he advised me to buy some altcoins with hope he had that so many altcoins are going to become profitable this season, but the question is, which altcoins will be so profitable this season? Currently, there are hips surrounding so many coins, but the fact remains that not all of those coins can pump as predicted, and therefore, I just prefer to stay clear and be on the safer side. If I want to invest in alt coins now, it should be primarily in old, established coins like ETH, BNB, and their likes.