Students are suspended less when their teacher has the same race or ethnicity

One data point from the study itself is that "Across the entire period, suspended students were roughly 45% Black and 40% Latinx; White students comprised less than 10% of suspended students."

Basically: most teachers are white. Most students are white. The vast majority of suspended students are black and Latinx.

Maybe this answers the question?

https://www.edworkingpapers.com/ai21-475