If unionization were endemic to the global economy, that might work.

Lacking that, power dynamics are such that workers need protections enshrined in legislation. If salaries are a race-to-the-bottom, nobody benefits except the ones doing the hiring. You may have a "job," but the market salary average would be depressed while the companies enjoy a large talent pool of replaceable workers.

If I didn't know history too well, I likely wouldn't hold this position. But it's clear as day if you crack open a history book.