Accusing coworkers of being antisemitic crosses the line, but accusing coworkers of sterilizing children and denying the existence of gender is ok? Surely both are bad, neither is acceptable in a workplace. Do you mean it’s not dumb because you share his views?
The first one doesn't accuse coworkers of sterilizing children. As for saying there's no gender attribute, I disagree, but it's just his belief and not a dumb one either.