Honestly.....though it may be difficult in the short term, European countries would be wise to accept and integrate a lot of Ukrainian refugees. Here is a golden and probably one time opportunity to take in White Christian Europeans....people from a similar background who look the same, who can blend in and who do not hate the locals and their culture/Christian heritage. That would - at least in the short term - go a long way toward helping fix the demographic decline of many European countries.
Keep middle eastern muslims - ESPECIALLY military age males - OUT. Keep other non European 3rd worlders OUT.
As I said above most leftists want to keep Muhammedans out