They don’t respect trans people, and they view using the correct pronouns as being “forced” to show respect. Pretty much just people being cruel as always

deleted by creator

If you’re genuinely curious, I can give you a glimpse into their rationality (though I strongly disagree with it).

Say, for just a brief moment, that you consider trans people to be mentally ill. Calling them by their preferred pronouns would be like giving a drink to an alcoholic–you’d be encouraging it, which would be to their detriment. And worse, you’d be liable to whatever diety might be displeased with your actions that caused someone else to continue in their sin.

Of course, that only works if you have a very poor understanding of both gender and theology. The real reason the bigots don’t like trans people is because it challenges their worldview, which is uncomfortable. And instead of facing that head on, they’d rather try to justify their current view.

The Oatmeal wrote a great info comic on this.

Conservatives want a strict gender binary. They dont even like women wearing pants and would love to go back to the days when cross dressing was illegal.

In other words conservatives are the ones with the agenda. Trans people just want to live their lives in peace

They’ve picked trans people as a “danger” so people don’t realise what the true dangers are (like having a fascist president, for example).

There’s a plenty of ideological reasons, but I think it is partly the environment being so stressful makes it harder for people to be considerate to new viewpoints or people.