Feminists

If science ever proves there is a specific biological / genetic / hormonal basis for LGBT, then you're going to see amniocentesis based testing to determine if a fetus is LGBT. Then at the very least, you're going to start seeing abortion based on if the fetus is LGBT. India has been doing sex-selective abortion for a while.

The next step would be in utero hormonal or genetic therapy to "cure" LGBT.

You think people won't abort LGBT? I asked some religious co-workers I know, who spend a great deal of time on religious forums, about this issue. They basically said the viewpoint of the very religious is that it's a choice of two evils. Abortion is evil, but homosexuality is an "abomination". That's their word "abomination", and an "abomination" is much much worse. So LGBT will be aborted by people like themselves.

I firmly believe some people are looking for a way to edit LGBT out of the Human Genome. Things like are just the start. Brave New World, here we come.