I don't like it if my T normalizes my stuff for me either. It makes me feel like I shouldn't be there and my T thinks I'm just being silly or something. BUT I don't think that is my T's intention when he does it. I think he's trying to help me see that he empathizes and accepts me - that he understands and I'm not alone in it.

Kinda backfires but its cute that he tries lol

It would make me mad too if I was in your shoes. It would probably be good to try and get some clarification about it from your T next time you meet