That wopuldn't be my answer. Christian Reconstructionists, for example, would replace our law with Biblical Law. That's, for sure, far more theocratic than the US under JFK.
And their chances of doing that are what? You can always find some nutball screwball group on either side of any issue. Certainly there are militant Communists who, if they had their way, would outlaw all organized religion, including Judaism. And given that the trend, if it could be said to be moving in the direction of either of those two packs, is moving more toward the latter than the former, I don't understand this irrational fear of the more general Christian conservative movement which would, as WOSG said, simply move things back to around 1960 (minus the racial segregation).
"Christian Reconstructionists, for example, would replace our law with Biblical Law. "
Come now, I am a confirmed Right-winger and I don't even know what that term *means*... I've never even heard such people were around (not that I doubt you). Just because there's a few nuts on our fringe, doesn't make them politically of any import and therefore Liberals fear of such a thing happening reasonable. You, me and 90% of the GOP would fall off that wagon pronto.
There are 150 Democratic Progressives in the House of Reps, who want to socialize medicine, raise taxes, make Iraq the next 'bugout' Vietnam, and a whole lot more.
Yet I dont know of a single Congressional Rep who would go for "replace our law with Biblical Law". Which is the reaonable fear then? Our country is more likely to go Communist than go in that direction.
The mainstream christian right today is about: Pro-life; pro-traditional-marriage/anti-gay-agenda; anti-pornography; values/morals in education and society at large. Creationism may rank in the top ten, but not the top five. Arguable stuff but not arguably 'theocracy'.