Probably no more than Obama has been. (According to Tavis Smiley, by several standards of measure, blacks in the US have fallen behind under the Obama administration.). Of course Obama had not set out to deliberately harm blacks. It's just that his well-meaning policies would do so, inevitably. Who in favor of Obama's policies would have predicted the results when Obama's term first began!
Well, it's a lot the same with Trump, for those who favor Trump. The biggest difference with Trump, however, is that Trump has business and business-creation experience that Obama doesn't have. One of the biggest problems a lot of Americans have is the lack of jobs and income-producing opportunities.