I agree with most of your comment except the part about the southern racists becoming republicans. In fact, out of all of the southern racist democrats, only 3 became republicans. All of the rest remained with the democratic party. Republicans have never been supportive of segregation, then or now. The major switch between the parties was strictly due to economic theory, not race. I would also agree that the democrats embraced the ideals of Lincoln since the 60's/70's but the republicans have never left those ideals. Nothing has been done to keep blacks from voting, only to keep anyone not entitled to vote from voting. There is no evidence that voting ID laws have had any impact on anyones ability to vote.