I disagree that "there's nothing interesting being built on other blockchains" that most bitcoiners believe.

I think that's burying your head in the sand.

We should definitely try to cope better with the rise of other blockchains, figure out where the valuable things are and put those on Bitcoin layers.

There's better ways to criticize what's happening in crypto - there's a lot to criticize, but there is some actual legit things being built there that we need to acknowledge if we want to have better arguments.