The Muppets (2011)

Continuity mistake: During the opening song, as Gary is dancing with the crowd, right before the chorus of the song kicks in, Gary spins around, with his hand to his nose like he's about to sneeze. During the first shot from the front, he puts his hand up to his nose, and begins to turn in a clockwise direction. He turns about 15° as the camera cuts to the next shot, and he has suddenly turned a complete 180° instantly between shots, and is facing the opposite direction.

Trivia: Due to pacing reasons, the backstory of the villain Tex Richman had to be cut. As originally conceived, when he was a child, his parents hired the Muppets as entertainment for one of his birthdays. However, during their routine, he discovered to his horror that he simply didn't have the ability to laugh like all of the other children, making him feel different from everyone else, and causing him to become an outcast when other children began making fun of his inability to laugh. He blames the Muppets for revealing this part of his personality to the world, and causing him to be ostracized as a child. This explains why he says the words "maniacal laugh", as he simply cannot really laugh. This also would prove that the Muppets eventually "saved" him during the credits scene where Gonzo accidentally hits him with a bowling ball, causing him minor head trauma that finally makes him able to laugh.

Question: What did Richman hate about the Muppets?