Some Conservatives Do Support Theocracy

 Some support theocracy and theocratic influence and others hate it. Christian morals could be said to be pro-human these days as few advocate asceticism while formerly humanism partisans tend toward support for a broad range of inhuman powers that subvert human and family interests.

Some hate church cosmology concerning origin of the Universe while some Christians believe that evolution is a sub-set of God's way of developing the universe so it's suitable for containing fallen mankind (modern hermeneutics).

Some Democrats support socialism rather than democracy and a few socialists prefer communism. It tends to balance out.

A nation with lots of people that value aretaic ethics, education and economic and environmental pragmatism is bound to do well if it has classic Christian values too. It might be pointed out that some nations could have strong moral values that are wicked and religion that is pagan. Those nations would lack the balance in politics required for sustainable democracy too.

I think no one besides atheists and the devil would oppose direct government by God. That isn't a human political system though. There is no human representative government of God that wouldn't be implicitly corrupt as humans are. A theocracy wouldn't be democracy. It would effectively disenfranchise most voters. It would work something like a communist or fascist government for the elites would be the same kind of people that appear in any form of government besides democracy with the ideology being a flag of convenience.

Luther's 95 thesis were posted in 1517. In that day expressing public support for democracy just didn't work. In Europe all of the governments were royal with zero tolerance for the ancient Greek demos being revived. The first short-lived modern Republic was created in Holland in the 17th century about 150 years after the 95 thesis. The protestant reformation stimulated political pluralism leading to the US democracy about 260 years after the 95 thesis. Even Luther had to publish in an environment with royals all around. German princes did support him because they had faith yet also were glad to be independent from the Catholic Habsburg empire. The Smalcauldian War followed. The Dewitt brothers that founded the Dutch Republic were torn apart by a mob and reputedly eaten.