Yes, that’s exactly the argument made against gay rights in the 1970s: that people are gay by choice or because of a mental disorder, and that they’re actively corrupting and seducing young people, so they must not be allowed to be represented in public.
This was a very popular argument! See e.g. Anita Bryant: https://en.wikipedia.org/wiki/Anita_Bryant
The harm done by her campaign wasn’t just words and delayed rights for gays. Some violent gaybashers sent people to intensive care shouting “Here’s one for Anita!”
This is still the everyday reality for many trans people in America and the UK. Normalized hate touches every aspect of your life. It doesn’t have to be like this.