I was a 100% bitcoiner 2014 to 2020, but after exploring defi and L2 projects in pipeline, i decided this time is different and converted to eth. That's just my opinion.
A parallel is like, today we only have 1 thing that's gold and many banks/financial institutions that provide variety of services. All these institutions combined are worth a lot of money (the largest banks combined have roughly ~2T$ in market cap[1]), but gold market cap is like 11T$.
Just my 2 cents, I own both and hope both succeed.
1: https://www.statista.com/statistics/431751/leading-banks-usa...
The ethereum ecosystem is just so rich that there's no reason to leave it, well, maybe bsc and solana, but that's it.