Is the U.S. a "land of opportunity"?

Let's take a look at the data.

In 2015, the University of California issued guidance to its faculty and staff regarding microaggressions. Among the phrases listed as microaggressions were these two statements:

• “America is the land of opportunity.”

• “Everyone can succeed in this society, if they work hard enough.”

I criticized these guidelines at the time. Since then, they’ve become a fla…