Because you're just another group who seeks to police how we're allowed to act around you. You (in a group sense) set yourself up as an enemy trying to take down normative society and then act surprised that you're seen as an enemy back? I remember being called cis-scum. I see the parallel attacks on whites, straights, and males. If you respected non-trans people's rights too you wouldn't have so much opposition. You seek to indoctrinate kids, police language, infiltrate bathrooms and showers, etc. And in reality you're mentally unwell and we don't want our society to be forced to become mentally unwell. But as usual this post will probably be deleted and buried so you'll continue to live in your echochamber and think that the people opposing you are just evil when they just want to be left alone and not be controlled and subverted.