Good morning Paul. This article is a year old but worth reading. I'm going to turn your question around if that's okay. How have the dem. policies improved the situation for inner city minoritys? From what I see, the dems. have kept them dependent, the dems. (and reoubs) only seem to court the vote and give lip service but then just ignore these folks until the next cycle. 
http://www.ebony.com/news-views/should-more-blacks-consider-voting-republican-in-the-2016-election-333#axzz4KWSNMRYz
"Sen. Tim Scott, the only Black Republican senator, reminds America everyday that our party stands on the side of providing a hand-up to all, especially people of color. Scott’s “Opportunity Agenda” is proof of his commitment as a Republican to providing for those often overlooked. "
You know the definition of insanity, so why would anyone vote for more of the same failed policies?