As for money there are couple of very big Ukie charities, at least one of them is with a serious lobbying arm - Razom. They do send shitload of medical supplies back home and do organize campaigns of letter-writing and calls to the POTUS and representatives. Not sure what else do you expect - Pali-style occupations, BLM-style riots? Apparently they don't do that. Is this a bad thing?
They seem very disconnected and uninterested. I don't see big marches, protests, organizing money, aid, etc. from Ukranian refugees.
I see more 4th Generation Ukrainians from Canada or whatever being more involved than the people who fled.