Let's go through all of this I guess.
His critical thinking skills are effectively non-existent. He is an intellectual sponge that soaks up the opinions of whoever he thinks is the smartest person in the room.
He's a comedian, yes. A mediocre one.
He's a mixed-martial artist, yes, and a pretty good commentator on MMA fights.
He's a health nut with HGH gut that takes all kinds of homeopathic "medicine" ("supplements" if you want to be kind, I guess) and looks like a ninja turtle.
He certainly is a commentator and a long-form conversationalist, of sorts.
Yes, he is a moron. By his own admission, hundreds of times. See my first bullet point.
I don't hate Joe Rogan, at least the "old" Joe Rogan, even though he has certainly held some problematic opinions in the past and present. I have watched probably in the triple digits of his podcasts. He was always toeing the anti-intellectual line, though pre-Spotify he was much more open to being a sounding board to actual intellectuals with regard to anything and everything that held his interest, and I never saw him turn into a dumbass debatelord in any of those conversations. Post-Spotify, he has taken a steep dive into the deep end of anti-intellectualism, is almost entirely closed off to having anyone on that will serve an opposing opinion on his COVID stance. The few that he has had on, he has tried to debate and embarrass them instead of having an actual conversation. For example, Sanjay Gupta, or even his friend Rhonda Patrick, who was desperately trying to explain to him how wrong he was, and he was just entirely closed off.
The whole thing circles back to my first bullet, because he is extremely susceptible to people that very much sound like they know what they're talking about, but are actually feeding him bullshit, hence why he likes people like Dr. Robert Malone and Ben Shapiro so much. Both are very good at shilling bullshit and making it sound intelligent and convincing.