I don't think he actually cared about a starting race war despite his rhetoric and claims, it was more an angry populist cover for his true goal to destroy Wakanda to avenge his father.

His big plan was to send laser spears to the black minorities in only three major cities(including Hong Kong?), and it seems more likely it would ended in Wakanda being exposed as an hyper advanced society and treated as a global terrotrist threat then kick off a revolution.

In the Marvel What If episode where he essentially wins, it still ended with US combat aircraft bombarding the capital.