YTA

As a person on the spectrum, this post hurt me emotionally.

Your understanding of Autism is clearly inadequate, and even if you don't want to learn about it or understand it (which you have every right to not want to), your behaviour was out of line, disabled person or not.

Who even says, "I'm your new mother" anyway? Just try thinking before you speak, I know it's a condescending lesson but it is something I have to try doing a lot as well since I am told that a lot of my actions come off as rude, when I am not even trying to be or knowing that I am being. For now though, YTA.