It could be a fad, an intellectual fad. They've happened before. The ideas of Sigmund Freud were a fad that lasted decades, but in recent years they've lost a lot of following, prestige, and credibility, as has psychiatry in general. That despite the mighty efforts of thousands of highly-educated practitioners who had invested their entire lives in Freudian psychiatry.
The world still awaits the testimony of the thousands - or millions, perhaps - of children who are raised by homosexual parents. The books haven't been written yet (actually I think one such book has been written), the movies haven't been made, the television programs haven't been produced. Yet. They will. Hollywood may not make them, Lifetime and Netflix may not make them, but the barriers to entry are falling lower all the time, and they will be made.
Donald Trump - whatever else he does or doesn't do - has taught Americans that they don't have to kowtow to political correctness. This is so far his greatest contribution. The long-term pressure of reality can't be ignored, even though it can be subverted for a time when the forces of societal entropy make a concerted effort through the media and political leadership.
Perhaps the ship will right itself, but, sadly, so many lives will be damaged/ruined while we wait.
Honestly, the people in authority who allowed this teaching to our children, along with allowing little ones to be adopted by homosexuals will have to answer.