Looking at national income data isn't going to provide enough context given the geographic costs of living differences, and so looking at income in context with metro is more appropriate--
Pew's income calculator helps you do that.
On a national scale it depends on what you are using as the range of income in defining "middle class",
Pew's range is $45k-135k and Brookings range is $22k-125k. But the issue is that such a wide range in income doesn't take into adequate consideration the wide gap in what a person making $45k has access to vs someone whose making $135k in the same metro.
And so, Kevin stating that 50% of Black men are in the middle class
doesn't mean much considering the costs of living in the areas
where most Black people live. Especially if his starting point is 30k and Black male median income even in high COL cities isn't much higher than the national average.