idk man, creative works are always a product of their time, and cultures are changing constantly. shifts in what is considered acceptable and appropriate for children are gonna happen regardless because our cultural standards and what we expect of children change, and at the same time, the way we consume our media is changing. television isn't the only way to watch shows any more, and a lot of kids are probably using services like netflix and youtube. really, a lot of people are considering the current era of animated television to be a kind of second golden age, because we have had lots of really awesome shows come around like gravity falls, gumball, wander over yonder, regular show, adventure time, etc.
i don't think it's fair to say there's censorship happening just because the content has changed; our shows are just representing a different time where our priorities and ideas of what is and isn't appropriate have naturally nudged around a little bit. to be more precise, i find it silly to say that politics is getting too involved with art if artists are just expressing themselves, because politics is a highly influential cultural force, so naturally, artists are going to be influenced by politics
