The trouble with unionization is that it doesn't really address supply and demand, just bargaining. There are a dozen un-pulled levers available to bring aggregate labor supply and demand in balance. Overtime law, vacation policy, retirement policy, education funding, tax law (this is a big one -- taxes are obscenely lopsided on the labor/consumption economy vs the capital/investment economy), and so on. We need to pull those levers instead.

Yep, it's going to be a helluva fight.

Why instead?

All those should absolutely be addressed (especially taxes), but organizing labor could be both a powerful way to push for those changes, as well as a force to maintain better labor/capital balance going forward.