It's unfortunate that you're willing to dismiss everything I said because of a generalization that spoke in absolutes.
There will always be people who disagree, but if you're in the United States and believe that service workers are not underpaid then you either only patronize high end restaurants or are completely out of touch with the average American.
If you spend any, and I mean any, amount of time researching tipping you’ll find the market research. It’s proof you’ve done no research yourself just spouting personal beliefs as if everybody feels the same (this day and age of all).
There will always be people who disagree, but if you're in the United States and believe that service workers are not underpaid then you either only patronize high end restaurants or are completely out of touch with the average American.