My reply was directed to someone that seemed to suggest "there is not so much violence".
I think the first step to discuss a topic is to understand what is there. If the statement would have been "I am fine that police in the USA being (potentially) more violent than in Western Europe", I wouldn't have checked anything because everybody is entitled to an opinion. I did check though because I wondered "is it true that there is not much violence in the USA compared to Western Europe?". I can't say I am sure after searching 5 minutes, but it does look like there is a probability that it is the case.
I think the first step to discuss a topic is to understand what is there. If the statement would have been "I am fine that police in the USA being (potentially) more violent than in Western Europe", I wouldn't have checked anything because everybody is entitled to an opinion. I did check though because I wondered "is it true that there is not much violence in the USA compared to Western Europe?". I can't say I am sure after searching 5 minutes, but it does look like there is a probability that it is the case.