Just a minor point of clarification, Mississippi was still in the process of flipping from a Democratic stronghold to a Republican one in 1970. The southern strategy hadn’t taken full hold at that point.
I specifically didn’t spell it ‘republiQan’ since back then it was just standard bible-thumping, women-hating racists. They hadn’t lost their damned minds just yet.
Back then in addition to all those things, they supported a liberal economic policy. George Wallace l, for example, supported the New Deal through and through, and progressive tax policies