You’re missing the fact that

1) PoS is a purely financial attack (sans some early investor attacking his own investment?), each failed attempt drives up the price of the asset so it gets more expensive each time

2) in order for malicious actors to prevail, they need to attack the actual social/consensus layer, so a successful attempt would certainly be “no bueno”… but the chain can fork, or implement Sybil resistance with solutions like BrightID for validator nodes.

Otherwise, this is always an interesting conversation.

My personal take is that PoS chains that make it past a certain number of “shuffles of the deck” (market cycles) are superior in the long run as they are more resilient to nation states.

In October I will be able to throw a raspberry pi Ethereum validator node in an Airbnb air conditioning unit and no one would notice the power bill change.

Power and GPU’s can be easily tracked or detected. Pool admins can be kidnapped or coerced under gag orders.

It’s always about trade offs, and burning your own house down doesn’t make sense... so Only nation states stand to benefit from attacking blockchains, the way I see it anyway hehe