“when committed as part of a widespread or systematic attack directed against any civilian population” which I don’t think this really clears, as objectionable as his comments may be
DHH hasn’t committed a crime against humanity. He just said he would not consider one entirely bad if it made him feel safer when walking around his house.
I don’t recall him being specific about which Roma are wolves and which aren’t. Were he talking only about “criminal” migrants, he’d make a point about that distinction.