Except 90%+ of all workers are non union.
But many union bosses and execs have their pay structure based on the prevailing minimum wage, so that tells you exactly why the Dems fight so hard for this lunacy. It's a kickback for millions of votes. Democrat leaders and union bosses each have kickbacks on their kickbacks.
Prices are still proportionally competitive.
If you increase the pay for commodity work 3x from $7.25 to $22/hr, those 3x more productive at $22/hr initially will likewise demand a 3x increase in pay - why should they be 3x more productive for the same pay? $22/hr will slide up to $66/hr, pushing $66/hr up ... and so on.