Regular readers likely know that "progressives" in the early 20th century were largely racists and politically leaning more toward Fascism, which was popular right up till things went bad in WWII and it didn't turn out so well, at which point they became "liberals" which used to mean "small government, lots of personal liberty".
They were well aware that raising the minimum wage priced entry workers out of the labor market entirely, and at that point they unabashedly called that a bug rather than a feature. They ran Jim Crow in the South and White Supremacism was a major part of their operation right up to the 60's (See Voting Rights Act and Robert Byrd).
In 1910, 22% of the U.S. workforce was foreign-born. A Who's Who of American economic reform warned that immigration was leading to “race suicide,” what President Theodore Roosevelt in 1907 called the “greatest problem of civilization.”
It's a good article covering what minimum wage laws actually do to the labor force and business. At this point in history, the left is on the "have over half the population on the government payroll and we win!" model, so throwing people out of jobs -- black, white, brown, green or whatever is a WIN!
Today, "Climate Change" is the "greatest problem of civilization" if you believe "progressives".