Fundamentalist dogma holds that a modern, secular, diverse and tolerant society victimizes evangelical Christians, because tolerance of sin and error is intolerable to them. This Orwellian inversion, where your freedom must be limited in order to assure my own, is no longer a fringe or schismatic belief.
Evangelicals can crank up the fire and brimstone all they want, but it's not going to work. Young people know lesbians and gays. They know that the anti-gay propaganda videos are biblical baloney, they know that "gay cures" are bunk and they know that LGBT people are just like them, differing only in sexual orientation.