It feels to me at that point the side denying it just shouldn’t be listened to. They’re being disingenuous to a high degree, and that conduct shouldn’t be entertained in a political environment. If it’s been proven scientifically, with credible studies and evidence, then they have no ground to stand on denying it’s existence. When it comes to things like restroom usage, athletic competitions, or other nuance’s pertaining to those of transgender or gender dysphoric status, I could see there being a discussion on how to approach that.