You are right but hate becomes stronger when you ignore it. This filthy ignoramus has no clue why he hates. One must confront him with , not explanations, because they will not help, but rather with the way I am doing it . Let him know that you are not buying what he is saying mostly by confrontational insults if necessary.
When I was an intern at a Psychiatric Hospital was to administer uppers or downers based on their behaviour. Yes medicine has changed since 1975 , but in most cases this is the only way to address the problem. The MSM media and US institutions and the world have coddled these savages instead of taking them head on.