Kuvult-
Yes- Kids need to learn to be friends with and respect other people regardless of their “type”
Yes- Parents should vet all houses they send their kids to (it’s easier to vet houses from people your type)
But- Parents should be super careful when sending kids to houses more modern due to outside influences, especially since kids these days are exposed to everything with no boundaries.
That doesn’t mean that they can’t play together and be friends- just it might be in my house, and not in the other kids house, under my supervision so that I can be more careful.