No, he's downvoted because he's saying objectively false things like "Musk is a mass murderer", and subjective but unproductive things like "he's a Nazi". You can dislike Elon Musk and make that point in a mature way that actually leads to a good discussion. People do that all the time and don't get flak for it. This poster has chosen to be incendiary, and people dislike flamebait so it got downvoted.