I don't know that he is. He certainly didn't use to be. Maybe the fact that he is old and less 'fresh looking' is what you are feeling.

Or maybe being fired from Fox when he was doing a great job and being tossed aside like trash and losing his platform, prestige, paycheck and gravitas due to the sexual harassment claims (unsure what exactly the claims were about and whether they were proven true or just manufactured to ruin him) causing advertisers to flee and derailing his whole life and body of works.

That life change could ruin a good man, making him jaundiced and bitter.