Wrong. Boycotting is not capitalism. It's activism. Moreover, you overlook the risk that a boycott could harm those low paid workers. How might the company react when revenues fall because of the boycott?
The way capitalism works is when a competitor challenges the incumbent by paying higher wages and offering better service. This only works if paying higher wages is economic.
When did you stop understanding how capitalism and free markets work. I didn’t mention a word about policy change. If I knew which companies are costing taxpayers money, so they can make more money, I would stop doing business with them. That’s capitalism.