I hate using this term because I don't think he's stupid but the phrase is "useful idiot"
If you think of the machine that is politics he serves a purpose. Allowing him to vocalize this message essentially is a pressure release valve. His existence and beliefs although not wrong are keeping more aggressive views at bay. He's basically keeping a segment of the population docile by making them think "he speaks for me. I don't have to do anything"
Hate to say it but AOC as well. They're part of the machinery. They are not disruptors at all.