Your post says that fake left politicians don't have messaging discipline. I think you are probably referring to Democrats like AOC, Bernie, Rashida Tlaib, Ilhan Omar, etc. I don't disagree with you there. My point is that I don't think that the guy in the video would agree with your comment. If he put on a Bernie hat to appear on Fox News, the guy probably thinks that Bernie Sander is spitting.
There are things that I like about the interview. My favorite part is that the media asked him what he thinks should happen to the the shooting suspect and he shrugs and says "I don't know". The media was baiting for him to call for the shooter to be punished and he didn't fall for it. I like that he blamed Israel for the DC shooting. I don't like that he said that voting is more powerful than violence in the full interview
Imagine for a second that what this guy had said was not an interview on Fox News, but instead a comment on Hexbear. If someone had commented on Hexbear that violence is wrong and that voting is more powerful than violence, Hexbear would figuratively rip their head off. If a politician had said this same thing, Hexbear would figuratively rip their head off. The distinction between this man and politicians feels entirely vibes based. Politician is bad vibes. Mysterious old man is good vibes.
The reason that I replied to your comment is that your comment feels exaggerated. You make him out to be a random non-political guy but he printed out paper protest signs and hung them outside his house before the interview. You could see in the interview that the sign was on paper and clearly not waterproof, so it's not like he hangs them up every day. He seems like a man with existing political convictions, especially if he has a speech prepared about the historical precedent of US presidents putting Israel on a leash.
I'm not saying that the Old Man is good or bad. I liked the interview and I am kind of surprised that people liked the interview so much. I don't want people to misinterpret the interview. Honestly, it could have just been a fluke that the interview went so well.