No matter the situation, no good can come from hatred. The RfL situation has already come from anger and bad, derailed arguments.
Instead of having beef with a stranger online and comparing him to an alt-right figure (which is very much not okay) I think having a good faith reply to a good faith personal opinion will at worst do nothing and maybe result in something at best.
Focus your hatred to the injustice of the world instead.
edit: pronoun fix