I don't think he was trying to make literal statements with things like that. Yes, he used sociopolitical commentary as his medium, but he was still a comedian.

He's not trying to convince his audience that everybody is stupid, he's speaking to a feeling most of us have had when looking at what others are doing. Everyone sometimes feels like like everybody around them must be stupid, just like we all sometimes feel like we're the only one missing something.

He's beloved because most really talented comedians can derive humor from relatable or absurd situations and stories, but Carlin could make a rhythm linking broad abstract concepts of human experience to really specific examples.

He's not a god, he was just a really talented comedian that had a unique style and medium.