Redefine what homosexuality means, and now you can't have a valid reason for not giving it up when a trans comes along and starts pushing for sex. But it also makes it easier to convince homosexuals that they're actually something else, and that they would probably be a lot more comfortable if they accepted that and began acting accordingly.

Redefine what the groups are, and who's allowed in, and you make it so that only those "like" you are safe and trustworthy, and outsiders are the enemy who want you dead (or worse). Extend that to ensuring that only select authority figures are deemed trustworthy--and parents most emphatically are not in that group--and you won't have the risk of outside thoughts or influence undoing your work.

Induce confusion and doubt in impressionable minds, allowing you to cultivate your demographic's size when natural growth would otherwise keep it at a fraction of a percentage point of the population. Then use the inflated numbers to push for further acceptance of your desired policies.