Affordable Care Act (and subsequent non-repeal), disclosure requirements for executive pay ratios, very long list of state-level measures (which is where most of this actually happens in general).
This is just 2018: https://www.littler.com/publication-press/publication/ready-...
The current era is also a bit odd because Wall St. and a handful of megacities are booming but real wages in general haven't risen much, the rust belt is still falling apart, suffering from the opioid epidemic, etc. So it's not that surprising to see lots of new labor laws in places like California while other places are more worried about saving local businesses.
> Just recently the Supreme Court ruled that forced arbitration was legal and we are at some of the highest profits and productivity ever.
There are always counterexamples, and that one is from the courts rather than the legislature.
> Those protections weren't going up during the boom cycles in the 90s either.
Arbitrary sample of state-level changes (1990 and 1998), BLS has the whole set if you're interested:
Hell, I gave less than two weeks notice at my last job and was privately approaches by multiple coworkers asking me if I was worried about the company black listing me. When we have companies lay off/fire people though, no one bats an eye at them being immediately walked out the door. Stating that labor rights have been going up just seems willfully ignorant based on the actual results in the economy
That's just assuming the causation goes the other way again. If the labor rules instead are pricing smaller businesses out of the market leading to business consolidation that gives capital more power over labor, you would expect just what we see.
It also doesn't make a lot of sense to expect a lot of labor laws to increase wages regardless. If you pass a law requiring maternity/paternity leave, that benefits the employee but raises costs for the employer who has to find and pay a temporary replacement. The expected result of that is to suppress wages rather than increase them -- the money has to come from somewhere and most businesses don't have huge margins.
I'm not sure your hypothesis fits reality