The fee death spiral is a wild prediction seeing that throughput can easily be expanded when not blocked politically since there aren't any technical limitations (bitcoin cash) AND that even when throughput is constrained to a suffocating degree (btc), the chain still worked and never broke down or went through a 'death spiral' it just had outrageous fees.

Most of the things he says are actually false arguments that no one is trying to make or just completely irrelevant.

High fees are only a problem of PoW blockchains, not of PoS blockchains which are becoming the majority right now.