I get the feeling you are trying to pretend those Republicans are the same as todays Republicans. Everyone knows those Republicans were liberals so lets make sure that is noted in your thread.
To more clearly point out the falsehood of your party switching argument is rather easy. Just because the states went red does NOT mean the racists became Republican. On the contrary it shows Republicans ARE beating racists democrats state by state and THAT is why they are turning color.
IF your argument were even CLOSE to true we would still be seeing cross burning's or dogs and fire hose's on black people. Those things have ended BECAUSE those states are turning red NOT despite those states turning red. Here is some ZO to cover the fine points.
The states turning red is a natural thing as those states move toward MORE freedom for the person no matter the color and to argue otherwise SUGGEST that those states AND people are unable to see the racist past of the party that brought the very destruction/enslavement AND killing of it's citizens.
Your first paragraph is a perfect example of faulty logic. The southern strategy has already been admitted to by the GOP so that pretty much kills your argument.
Your logic continues in the second paragraph with a wild assumption that we would be seeing more cross burnings, dogs , and hoses. We dont see that for two reasons. Its against the law and white racists are afraid of Blacks that are not going to turn the other check while this occurs. If they thought there were no consequences to their actions they would be doing it as we speak.
The states turning red was an orchestrated thing. which you can see if you have any education in regards to the history of politics in the south. There is nothing natural about this being orchestrated.