And Fox makes unfunny show.
Aside from racism, violence, and general "kicking the puppy" humor, conservative political humor these days involves referencing an alternative reality that they've created. They don't need jokes, they just need to point to the fantasy world they've created ("Nancy Pelosi's big plane! ahahahahaah!") so they can have a shared chuckle about it. There's no wit needed, just an invocation of pre-existing laugh lines based on their manufactured reality.