I’m mostly warning about complacency about liberals being safe from error
I can certainly agree with that. :)
I don’t really understand why liberalism is getting the prefix “classical” here though.
Mostly to reduce the chance of misinterpretation. In the US, “liberal” is often used interchangeably with something like “leftist”, “Democrat”, or “progressive”, and I wanted to make clear that I don’t want any of these connotations. I also wanted to emphasize the core principles of liberalism, and avoid getting bogged down in specific policy debates.
Interesting points!
(I think the US example is perhaps a bit more complicated. It’s not just very wealthy, it’s also highly unequal and offers much weaker safety nets than most other liberal democracies. So the bitter politics may have more to do with material insecurity than with post-scarcity boredom.)
That said, I do agree that as scarcity recedes, zero-sum status games could become more prevalent.
Another reason why fanaticism could matter more in the long run is that future disagreements may be much more about terminal value differences than instrumental policy questions like how to create jobs or make things more affordable (no one will need jobs and there could be huge abundance). That’s where fanaticism becomes especially relevant because it entails potentially drastic value disagreements that are locked in, with potentially no room for change, trade, or compromise.