Decrying something to be wrong, because the source who said it is someone you don't like, is logically fallacious. However, source does matter. If a source is someone that continually produces poisonous fruit, they can be discarded. But, it doesn't mean everything they say is automatically wrong.
The XX guy is a really nasty and retarded Fuentes freak, there's no reason to interact with anything he posts beyond "fuck you".
Decrying something to be wrong, because the source who said it is someone you don't like, is logically fallacious. However, source does matter. If a source is someone that continually produces poisonous fruit, they can be discarded. But, it doesn't mean everything they say is automatically wrong.