That is not true.
There is a lot of voter fraud, without IDs it is unmeasureable.
The Republicans want the informed voter, the motivated voter, the kind that will read several information sources and stand in line in the rain to cast his vote, are people who say that black people are not motivated voters exhibiting racism?
The Democrats are a lot less discriminating, to be a typical Dem voter it is not required that the voter read much, bother himself to get an id ,or have a pulse.
Being black is no issue, Republicans would like it fine if black people were doing well enough to vote for Republicans.