I give you the same question, Supposn. If you raise the national minimum wage to $15 an hour...how are you NOT going to have everyone who wasn't working for minimum wage because they had learned job skills that got them more money...not knocking on their bosses door asking for a raise? Do you honestly think that someone who used to make $15 an hour but had started their job at $7.50 an hour isn't going to demand to be compensated for those additional job skills? In Communist countries they can get away with paying everyone the same rate no matter what skills they have but to be brutally frank with you...if you try that here...you'll have people rioting in the streets!
OldStyle, due to the concept of wage differential, the federal minimum wage rate bolsters all USA wage scales, regardless of how many, or how few persons knock on the doors and requesting a raise. And in aggregate, they generally in aggregate should, and do gain raises each time the minimum wage is increased.
The federal minimum rate U.S. Has always (as it should) be increased in a manner that would shock USA's labor markets. On the contrary, because the timing and extent of its modifications were directly subject to congressional politicians rather than to civil service statisticians, the modifications of our minimum rate have been too slow, and too poorly, and consequentially their economic benefits have been less than they should have been.
I'm a proponent of a 12% annual increase until we achieve 125% of February 1968 CPI, and thereafter the minimum rate should be monitored and annually (when necessary), modified to retain that purchasing power.
It's conceivable that a person may equate the minimum rate with paying everyone the same rate. I doubt if you ever met anyone as naive or ignorant to such an extent. Respectfully, Supposn