> If you don't like to tip, there are plenty of restaurants where tipping isn't expected; specifically those where you carry the food yourself from the counter to your table.

Generally such restaurants serve significantly different kinds of food, and are typically lower quality. You can't expect these kinds of restaurants (typically fast food, food trucks, buffet food, etc.) to out-compete restaurants that they are hardly even competing with in the first place (e.g. fancier sit-down restaurants).