"Suddenly came along"... when trans people have existed for a long time. There was Christine Jorgensen in the Fifties, first to have the surgery, and the He She Ladies in 1870, you can Google the Boulton and Park case.
"We were minding our own business"... WHEN?!!! If people like you ever mind your own business, I'll eat my cricket cap. So don't be like old Checkmate Charlie in 1642, declaring war on someone you're unlikely to ever be able to beat.