You know what goes a long way to eliminating blue collar angst? Healthcare. There's a policy that the US would have no issue implementing if the will existed. Hell it would be cheaper than what you currently spend.
You know another policy that would help? Subsidized maternity leaves.
Do you want a third? A government run pension program.
A forth? Controlled college tuition.
All of these are well within the US's power to implement, provided the will is there. But the will not being there has nothing to do with the ability of a nation to implement these things.