Folks makin a wage other than the reduced wage for tipped employees should never get a tip.
By your logic, we shouldnt tip parking valets, hotel staff, bartenders, cab drivers, haircut, massage, coat check, movers, etc. There are functions of our society. These are all people who make regular wages.
No, the problem is you are missing the argument, that in this culture, we tip certain service industry workers, and some are more justified. For example, as a normal server, they make less because of tips. Coffee shop workers are tipped workers, but not the normal 15-20% range. Doesnt mean you dont tip because they dont fall into this.
I get you lack certain comprehension skills based on getting a female tattoo on your back, but this isnt hard. Just because you want to live a reality where male tramp stamps are ok, or not tipping baristas is ok, doesnt mean it is. Its normal social etiquette.