Earlier quoted context omitted.
So you're saying the proper response for the employer acting to raise pay to the line workers by raising prices is for you, as a customer, to act to lower pay to the line workers by stopping the tips? That'd show the greedy owner! Surely in some world that must make sense... but it's not our world.
I'm obviously not in the US, but this is a patently absurd perspective as it would then dictate that I am lowering pay to a lineworker by no longer being a customer. Where is the actual business's culpability in that twisted transaction? I've just impoverished one barista at Starbucks because today I went to Cafe Nero instead! And I'm no longer a regular at my local Italian joint, so I've just deprived a few more peo…
As an individual customer, not likely since line workers' pay does not directly depend on the number of customers served (at least until it's so low that the business goes under and they have to move to unemployment benefits instead). Tips depend on each customer though, so if you chose Starbucks over Cafe Nero, and Starbucks barristas don't get tips, but Cafe Nero's ones customarily do, then yes, your choice had influence on the income of Cafe Nero's barrista. Probably a small one, but it's there. If neither barrista gets tips (I've never seen anybody to tip a Starbucks barrista but in smaller shops it happens sometimes, though much less frequent than with waiters) then there's not much difference from a single individual action.