Culture war nonsense is favored by governments that want you to have an "enemy" to point the finger at instead of them, it's a classic strategy that the Nazi party used during the Holocaust. We're susceptible to propaganda, all of us are, and a trans people are a minority that's easy to point at - and get a lot of people with rigid values on sex and gender to listen. You can get that basic "ew that's unnatural" response with bathroom or anti-trans women in sports rhetoric, regardless of whether there's merit to the claims.