I don’t know that this “explanation” you offer really captures the issue for two reasons.

1) If wage suppression is the issue, why aren’t people swinging hard to the “left,” which promises them wage increases and welfare benefits and social safety nets? I think you’re focus on relative wages is the cause of a lot of social unrest, but it clearly lacks the explanatory power you would suggest.

2) Furthermore, you also make a fallacy of composition (that because something is true of its part it is true for the whole). Yes, the US did elect Trump, but a significant part of the US is swinging further left, as evidenced by Clinton swinging further left (not just in policy, but in rhetoric-e.g. “deplorables”) as well as a rise in hard left-wing violence, such as the shootings at republicans that occurred last year and the increase in hostilities on university campuses.