I think even in that situation it's not clear that something like Monero will keep you safe in perpetuity - or even today - against a well capitalized state act

I think even in that situation it's not clear that something like Monero will keep you safe in perpetuity - or even today - against a well capitalized state actor. The fact folks haven't gotten banged up for it yet isn't an indication it's safe - far from it. A honeypot behaves the same way until it does not.