He mentioned a school where parents had removed their DC because a boy was attending wearing a dress. I said kids should wear what they want and he said it's parents pushing an agenda on their children. I said no, he always knew he was a boy when he was little - imagine having his body but knowing he was a girl like a young lady I know. I also mentioned that DS's favourite teacher at school was a trans man and he said "they let them into schools now, do they?" I was furious and left his house to come home. I'm very aware we have different views on a lot of things, mine being very liberal and his being very conservative (with a small c), but imo he personally attacked someone I like and respect very much in that teacher and it's that that I'm mad about the most.