That's absolute nonsense. If it had nothing to do with social issues then Republicans wouldn't be so successful at using social issues to convince Southerners to vote GOP.
And Arkansas is now quickly completing the transition to becoming a GOP state at a state level.
We're talking about Arkansas here, not the bloc at-large. A state that opposes abortion (55-45) and gay marriage (72-25) by large margins has continued to elect the party of such decades after civil rights, Roe v. Wade, forced busing, affirmative action and all of the other nonsense that the GOP has tried to use to destroy the Democratic Party's power and associate the national brand with the state party.
It worked almost everywhere else: why didn't it work in Arkansas? Because Arkansans still trust Democrats with their tax dollars - period. It isn't an accomplishment to wear down a party after 40 years of hammering them on social issues: that's just the New Deal coalition dying. Arguably the most socially conservative Southern state will be the last one to go, but please, continue to tell me how it all relates to social issues.