Awful experience! Went in last night on my way home just to try to end a boring night on a positive note

Awful experience! Went in last night on my way home just to try to end a boring night on a positive note. I walk in and pass 3-4 girls sitting at the bar on their phones (this is common)...but it gets worse. There is this guy with a bad Duff MCKagan haircut (I'm assuming) drunk just yelling obsentities at the girls and at one point yells out, "I'm an American, I don't f--- with no (racist term for a Hispanic)". There was a guy next to him of that ethnic background that I'm amazed didn't knock the guy out. I couldn't believe nobody said anything to this customer or just tossed him. It became uncomfortable and horrible. once there was a long break waiting for a girl to come on stage I saw this guy get up so using my best judgement I just got up and left after watching three girls on stage and barely drinking any of my $10 soda. What a waste of time.