My portfolio is 50% BTC, 25% ETH, 25% XMR. And, as much as I love those coins, I would dump them all in a heartbeat to get that magical 1BTC.
Mine is more than 90% BTC now. Back in 2018, I sold most of my alts, and converted them to either ETH or BTC. That proved to be a good step, because the coins that I sold back then (BitSend, Denarius, Gbyte.etc) are now almost worthless. And I am sure that the same will happen to many of the coins listed out by OP. I am not saying this about coins such as ADA and ETH, but about the other alts in that list. The recent bull rally has taken the altcoin market share from less than 25% to more than 50%, and this has made many of these coins heavily overpriced.
Mine was supposed to be closer to 70% BTC but the recent correction and ETH/XMR's performance vs BTC has pulled these two much closer to BTC than before. I do see ETH/XMR as having a lot of staying power (smart contracts/defi and low fees/privacy respectively) and would like to hope they will not crash too much more than BTC after this bullrun is done, and perhaps even decouple (although I see that as unlikely for a long time). I am a new investor this cycle though, started DCAing in Feb 2021, so I am a noobie to swings of the market so could end up being totally wrong.