There's actually no such thing as good "content" for kids, sorry.
If you have to put a show on TV to give some songs to sing along to or to distract them while you're making lunch, I'm not judging you, and I think it's best to put this content on a gradient rather than black and white.
Parenting is easier if you have 5 family members in walking distance and they also have similarly ages kids who can all play together.
Focusing on such a tiny thing and blowing it up into a huge negative out of context of their rich, busy, and safe lives is really out of hand.