I got fired because of a 1/5 star rating where in the comments of the feedback they said i did excellent and was nice but they hated "the damn robot before and after"

My boss said that it was still my responsibility and that if i took more ownership i wouldnt get fired from wherever i worked in the future. I asked him if he would reconsider firing me. He paused for an exceptionally long time and said no. I cried and he laughed in my face. When security walked me out they wouldnt let me keep my headphones that i had brought in and paid for with my own money.