The reality for you to get over is: traditional Christian heterosexual parents are the vast majority of U.S. parents, and will continue to be for the foreseeable future.
What does that have to do with the fact that gays have children? There are far more heterosexuals than homosexuals. So it is, hopefully, obvious that the majority of parents in the US will be heterosexual. It is also a fact that many of them (the heterosexuals) will be lousy to really bad parents.
But that does not change the fact that gays are here to stay and they have kids and they raise them. You can condemn the idea all you want to - but it will not change the reality.