Even Bernie came against this reality: his workers demanded $15/hr, you know in line with his stated policy platform. So, he did concede the raise but cut back on their hours.
Now, I’m somewhere in the middle. I think shipping jobs overseas has had a catastrophic impact on wages and jobs (unions can’t protect against this in any meaningful way). Also unions will milk a company dry regardless of consequences. But they occasionally protect against some abuse. On the other hand they stifle innovation in very counterproductive ways.