Racial voting in MS is by far the worst in the US... if it had the same voting patterns as even Alabama it would certainly have gone for Clinton in '96 and would be a "battleground state" this year.
You assume that they vote against each others race in Mississippi. There is no proof of that.
There's plenty of proof... check out some of FairData's maps.
It's not a "nice" fact, but it's true that race determines Presidential Voting patterns in Mississippi to a frightening extent.
Both sides should do something about it, neither side will... racial gerrymandering doesn't help matters.
By no means am I arguing that there is no racial divide when it comes to voting patterns. There is a HUGE difference between blacks and whites.
I am arguing however, that it is not a result of RACISM. Different views of what government should be responsible for, YES. For the record I don't agree with Gerrymandering either.
Rural Whites and Blacks in the Deep South have very similer political (both groups tend to be socially conservative and economically leftist) and religious (both groups are heavily Evangelical) views.
Various unscrupulous bastards (both White and Black) stir up racial and sectional ("All Yankees/Republicans are Evil") tensions every damn election... it's not as bad at state/local level though.
It's true that the difference between
suburban Whites (who dominate Southern Republican Parties) and rural Blacks *is* huge though.