I believe I pointed out that, rather, the opposite is the true:
https://www.debatepolitics.com/sex-...-marriage-trans-rights-times-study-finds.html
According to the Times study, it is rather the minority of aging Boomers and dysfunctional millennial who will have to adapt to the real world, and accept that Gen Z is anti-gay, with "LGBT rights" being a dying relic which won't have any validity in the post-modern world they've inherited.
So no, it seems that unless the LGBT cult stops its stagnation, and renounces its own deviancy, it is it which will die off, both culturally, and evolutionarily as well, given its limited reproductive ability.
Whether or not it would be worth society's trouble to re-ban sodomite "marriage" or not, I'm unsure, but it wouldn't be difficult at all for society to effectively make publicly identifying as "LGBT" as unacceptable as publicly acceptable as identifying with ISIS - which if fortune may have it, they'll get at it posthaste