I'm not entirely sure what you mean, but since you asked above if we "ban people commenting on how bad russians are", the answer is sure: nationalistic flamebait is not welcome on HN and we ask people to stop doing it and ban them if they don't stop doing it.
https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
Banning vs. just scolding depends on what else the account has done on HN, but we don't moderate differently depending on the country people are talking about—or at least we try not to.
Needless to say, that particular case is complicated by the war, but commenters can make their substantive points about that without attacking any ethnic group.