Bitcoin can be sent and received anywhere in the world needing no than a raspi's worth of computing power.

Not many banking hoops to jump through, sanctions aren't at play, very difficult / impossible for a non-superpower country to exert control.

Greece and Venezuela are both recent examples of countries where people who owned Bitcoin faired substantially better than their peers who did not.

Not necessarily anything, but collapse of the dollar would have systemic impact, it wouldn't localised. And I suppose there is always some counter party risk with bank accounts or brokerage accounts, unless you hold the gold - or private keys