The American Negroes' lock-step support of Democrat politicians is a sad manifestation of a general unwillingness or inability to think clearly. When inner-city "Black" precincts vote 95%+ for Democrats it is nothing more than Herd Mentality writ large - which does not speak well of the intelligence of the group in question.
And this is not because the particular Democrat is not worthy, or a particular Republican is manifestly better, it is because in all cases, the better candidate for Black America, or for any particular Black voter IS DEBATABLE. And if that community were capable of rational debate, the division of votes would be rational...65-35 or some such ratio. In the case of 95%+ for one candidate, in the absence of some horrific reason for the discrepancy, there is no rational justification.
In the case of Donald Trump, the only substantive indication of racism is his background is a problem with the family's racial policies with regard to rental properties in New York more than fifty years ago. And even that is a bogus charge, as every large real estate manager in New York was doing exactly the same thing as Trump Properties at the time, but the Trump's were the most visible, and hence drew the attention of the Leftist bureaucrats in charge.
But where is the evidence in the past 50 years of any animus of Donald Trump toward Black Americans? Of the hundreds and hundreds of Blacks employed by Trump properties and Black contractors hired by Trump entities, the Leftist Media have yet to come up with a single credible complaint by an American Black of RACIAL discrimination.
And I won't even get into the statistics on developments for the past three years, which demonstrate that the Black unemployment rate improves significantly, Black household incomes increase significantly, Black home ownership is trending upward, as is Black entrepreneurship. Which is NOT to say that EVERY Black should vote for Donald Trump. But there are real, rational reasons why many Blacks would see his policies as more advantageous than the phony, cynical promises of FREE STUFF from the Democrat Clown Car candidates.
If the OP is correct, and essentially "all" Blacks are united against Trump, that says a hell of a lot more about the intellectual firepower of the group in question than it does about the success of the Trump Administration in addressing the real concerns of Blacks living in America. Pity the politician who works hard to address the concerns of a particular group, then that group is too oblivious to notice what is being done for them.