Screw you. When my brother came out (as an adult), my mom said to him, "You're still the same wonderful person you always were to me, and that will never change just because you're gay". And she adores his partner, we all do. The rest of us were relieved that he finally accepted who he was. He had been suffering from depression for years, and now he's very happy, and we're all grateful for that. He's still one of my favorite people in the whole world.
Oh, and my cousin was a heroin addict, and thanks to the fact that his loving parents never gave up on him, he's now in a special vocational program for addicts that teaches them job skills along with helping them recover. The outcome still remains to be seen, heroin being one of the toughest habits to kick, but his prognosis is looking good. Again, it's because we all love him enough to stand by him, and support him through all this.
Because that's what loving families do.
Kicking your kids out because they no longer make you look like the model family at church is the single fastest way to destroy a family. My family is as strong as ever because we accept each other for who we are, and stand by each other in difficult times. Another uncle, who thinks along the same line you do, doesn't even know where his kids are, because none of them will talk to him anymore.