Following this train of thought, what I gathered from other comments is that she had a bad experience with a man in the past, her targeted social media experience likely concentrated the bad news in that direction and her view is now that the trans movement is just evil men looking to invade women’s personal spaces in order to abuse them.
If you look at her as someone bombarded with Fox News type of content, then perhaps that kind of paranoia and fear is what makes her so vocal in her opposition.