Defended by allies at work

I ( 19 transfem) have worked at a restaurant for a little over 3 years now, but have only come out at work in the past couple months and has mostly been great, a couple of the people there (all men) have issues with me but it's mostly tolerable and ignorable.

Yesterday one guy there deadnamed me in what was a genuine mistake. Came ten minutes later to apologize to me in front of everyone but continued to use my deadnamed in the apology ("sorry for calling you x", "my brain still defaults to x for you".) I tried explaining to him that continuing to use my deadname in the apology is impolite and he began arguing that it made sense in context. Everyone else there (three other cis folk watching us) defended me and got him to admit that he was still in the wrong. I'm so grateful that I've found my people 🧡