You shouldnt be open to date those woman due to the war. Just alone the reason why you would aim for an Ukrainian is coming from a pretty weak character.
I had one Ukrainian girl in the Metro approaching me and who started a conversation with me, I knew she was interested just by her body language, but made clear that I wanted to be friends with her instead. Actually wanted to learn more about the Ukrainian cultur back then.
I knew hooking up with her wouldnt be smart because of the war. They dont know what they are doing since the war affects them heavily emotional. It was like few years ago and she is now married and has a great family (2 kids), during that time I guided her through the city, gave her advice, basically mutual value exchange.
More men need to learn to have a moral compass, otherwise this world will swarm with damaged People.