Seriously. Like, okay, you think that the whole transgender thing is a fad, or "attention-seeking," or any other nonsense. Everybody is entitled to opinions, even stupid ones. I guarantee I have some stupid opinions, myself, about things that have no relevance to me.
But feeling the need to express those opinions, and feeling so strongly about it, and wanting to make legislation for it, and pretending you give two shits about girls' and womens' sports when 5 years ago you were talking shit about the WNBA because they were a joke to you, when you will knowingly interact with a trans person once or twice in a year, maybe, in your little podunk town, and since you are talking to them you won't have an opportunity to use a pronoun for them... well there's obviously something else at work here.
It makes it clear it's just an excuse to hate, because trans people don't affect them in the slightest.