> 1. No one sane trusts EU after RU sanctions either.
The RU sanctions were implemented 'only' because RU invaded another country. If you don't plan on invading countries is there much to worry about?
To a certain extent if you 'just' want to participate in the world economy the EUR seems fine. If you're looking to start geopolitical drama with military actions, is there any currency of a major economy that would not be a risk? Major powers tend to want stability, which would allow them to stay major, so would frown upon anyone stirring the pot (besides, perhaps, another major power: see China with Russia against UA/EU).
Europe wasn't breaking sovereign immunity / sovereign bank seizures when historically fighting each other, current actions historically unprecedented. So the answer is war is not sufficient excuse for RoW. EU extra delulu because RU/UKR not even over direct EU/NATO territory i.e. EU breaking sovereign immunity over "peripheral" interests. Like EU seize/sanction US when? Point of sovereign immunity is provide some semblance of neutrality for rest of world to do their thing while drunks fight, neutrals still want to buy from the drunks, EU has made things both hard not neutral.