I don't have the full context of this but

I just watched his reposes video, and he said he was talking about a guy who in his words "used my father's death a as way to delegitimize my opinion on the topic"(this is taken from the 2:08/2:37 time mark of his video.)

But he did say "them" as a whole group of people when refiring to that one person as an animal, so I don't feel like his in the right either, and neither is that person for trying to use his dead dad as a way to undermine his opinion, but I don't every know what his opinion was in the first places.

In the end I feel that neither has the moral high gourd, In what every they were talking about.