So if nobody went to your store because they don’t want to tip the restaurant would close and you’d be fired.

You are being exploited by your boss. The people tipping you are subsidizing that exploitation. You want to be pissed, go be pissed at your boss or find another job.

As another user mentioned plenty of wait staff are in favour of tipping so also because of that it doesn’t change

And it’s a descriminative and unfair system. Theres plenty of data on it.