Sarah Posner has a piece on the connections between the far right and the White Supremacy and neo confederate movement. It is worth a read.
But to be very clear, and I am sure Ms. Posner would agree, this is not to suggest that conservative Christians are racist. But it does suggest that there are connections that many of them don't even realize. In fact, I am becoming more and more convinced that the conservative Christians are largely ill-informed about what their politicians are doing in their name. I don't think they realize much of the insanity, and this is just another example. It doesn't excuse their ignorance, but it may explain why they have become supporters for a party that is increasingly racist and certainly only interested in the interests of the rich and powerful.