Should the kid you share some genes with be treated differently than kids you don’t? Are adopted kids not “real?” Why should he not love these children as “his own”? They are not property.

That is not how human culture works.

Perhaps not all, but certainly most of the kids and their parents I hang out with seem to operate this way.

Because we don’t live in a make believe world.

I actually live I such a world as do most of the people I interact with on a daily basis. Quite a few blended families which are unremarkable.