Yeah sure there are a ton of good reasons to be a BTC maximalist, BTC is solid and should be around for a long time. And even without going so far as to be a maximalist, I find that investing in projects and altcoins represents a lot of research and 'temperature-taking', often resulting in a lot of disappointment (but this is a personal point of view).
But I deeply believe that people who buy alts to get "rich quick" don't give a shit about decentralisation, P2P, the freedom that cryptocurrencies can offer or the founding principles of Cypherpunks.
However, at least there is one good thing about altcoins and memecoins. they encourage a lot of people to get involved in the world of cryptocurrencies, and some of them then gain a better understanding of the field through research and reading. They have the advantage of contributing to the demystification of the actual use of wallets, exchanges etc.. for the begginers.
How many times have I read on Twitter or Reddit, something like "came hoping for quick money, stayed because it taught me how money works"