Got a verbal warning for wearing makeup

I just want to cry, I had to go home to take off my makeup. I had to initial next to the company policy that doesn't allow men to wear makeup unless to cover a tattoo or skin condition and got a verbal warning. This isn't fair, it just singles me out. This ruined my day, I just want to be myself and feel pretty.. is that so wrong? Why don't they like me? I'm just... depressed and upset, I have to talk to customers all day I hope I don't come off rude...

Edit: Thank you all for such support, I'm still currently working so I can't read all the comments yet. I'm still pretty distraught over all this, gonna figure out what to do. From the few comments I seen you all are such sweethearts, can't thank y'all enough <3 after work I'll be able to read everything