I don’t think making Mr. Potatohead into just Potatohead is that big of a deal since it’s literally just a toy 
Making them non-binary doesn’t add or remove anything imo, so I don’t understand the hate for that.
Also, is it like illegal to use anything other than nonbinary terms? Or just recommended? Cause those are completely different things, and making something like using mom or dad illegal is clearly wrong.