I agree Bitcoin doesn't scale in a non-custodial way at the moment. There is a risk that it never will. Giving up and starting alternate projects will mean that it never will.
Discussion
If there is a risk that it never will scale non-custodially why shouldn't there be a plan B, C, and D available?
No one said anything about giving up. People will always start alternate projects. The birth of Bitcoin itself was an alternate project from ones before it.
I don't have a problem with developing alternatives, a free market is a good thing.
I see a lot of people give up on Bitcoin and relinquish their influence on it.
I can honestly understand why some give up or get pessimistic about Bitcoin. The ossificationists and NGU chart bois are rampant.
The only thing that seems somewhat promising is CTV and Drivechains. But the general community seems hostile or at least tepid about it thanks to the smear campaign by core & company.