The gist of what I heard is he's low single digits with African-American voters, and not much hope of increasing that much, BUT this turn might look like he's mellowing, and Suburban Women, who don't like all the hate shit, might see that he's mellowing and being real concerned about people, so they might change their minds and get behind him.

In other words, he's doing it to attract the girls.

As I said he "may" not that he "will". I think Democrats are making a grave mistake by continuously bundling up blacks and Latinos. Those two groups have polar opposite interests, let alone culturally they have absolutely nothing in common. American blacks have more in common with American whites then either has with Hispanics.  

There is a reason why Donald Trump had no problems going after Hispanics but didn't utter a single wrong word, even hinted on anything that could be remotely interpreted as anti African-American. There is also a reason why he chose Michigan to make his "you have nothing to lose" speech. Detroit knows where their jobs went to. I think if Trump wins you'd find him getting a record numbers of black vote especially in Midwest.  

As for your link I agree with that assessment wholeheartedly. I'm sure that Trump's secret service protection tells him the same thing. I don't think Trump has much to fear from majority in the black community many of whom I know for a fact are intrigued with Trump on some level and under certain circumstances could be turned (that's one of the reasons (not main though) why Trump is going after them) but I'm sure there will be sufficient trouble making minority who'd try to shut him down and cause enough disruption to make sure that his message to black community is not heard. One should just look at the behavior of Bernie's supporters throughout Democratic primary to see how crazy they can get. I'm sure Trump's experience in Chicago taught him something.