Why Didn't Higher Education Protect Hispanic and Black Wealth?

Higher education alone cannot level the playing field. Evidence presented here suggests that college degrees alone do not provide short-term wealth protection, nor do they guarantee long-term wealth accumulation. The underlying factors causing racial and ethnic wealth disparities undoubtedly are complex and deeply rooted. Further research is needed...
https://www.stlouisfed.org/publications/in-the-balance/issue12-2015/why-didnt-higher-education-protect-hispanic-and-black-wealth

But maybe your'd rather believe Rand Paul: Rand Paul: Of Course Income Inequality Is Linked To How Hard You Work