Opinions on Jeffy the puppet?

I'm autistic and so is my younger brother. My bro watches Jeffy and to be honest I hate it. My opinion? It teaches kids about a lot of stuff they shouldn't know. It's not a kids show but the puppets they use make it seem like one so kids watch it even though it's horribly inappropriate. I've also seen people say Jeffy is a walking stereotype of disabled kids or kids with learning difficulties and it really seems that way even though the creator has said the character doesn't have a specific disability. My parents bought my bro his own puppet of that thing and I hate that too - I honestly find it kinda offensive and I'd rather not have that thing in the house but it isnt my choice. I'm curious about what other people think of it though.