To begin with, my proposal is hypothetical. I do not expect that a tipping strike will be organized any time soon. People are grumbling about being expected to tip. The article's author is grumbling, the commenters are grumbling, and cited statistics suggest that many members of the general public are grumbling. Right now, people are at the grumbling stage. They are grumbling, but they are not ready to take action.
As time goes by, the grumbling will grow louder. Eventually, the grumblers will reach the stage where they will be ready to take action. My intent was to convey the kind of action that might be necessary to achieve the desired result. Unless the grumblers are prepared to take such drastic action, the expectation to offer tips will continue.
The goal is not to teach the employer about "social justice." The aim is to pressure servers to find higher-paying jobs, as you did, and discourage others from seeking server jobs in the first place. The idea is to create a shortage of servers. Owners would have to offer competitive pay to attract enough quality servers. Otherwise, desirable workers will not seek jobs as servers.
I would fully support the idea of servers unionizing if they believed that to be in their best interests. I would hope that a tipping strike and the consequent reduction in compensation might stimulate a unionizing movement among servers.
You tip car wash attendants and furniture movers. Do you tip your doctor for excellent service, or your lawyer? Do you tip the cashier at the supermarket? How about the workers who stock the shelves? When someone guides you to the merchandise you are looking for in a department store do you tip that person? Do you tip the guy who keeps the floor clean in the shopping mall? If not, why not? They are your fellow human beings; don't you want to help them?
Did you receive tips when you were working in the factory?
When my wife was bussing tables in the mall food court, she was strictly prohibited from accepting tips. Same when I had a job that involved carrying groceries to customers' cars.