When a minority imposes their religious beliefs/interpretations on the greater population, through the use of the government, it is theocracy. And theocracy always--ALWAYS--becomes cruel and oppressive. 

This is what we are seeing now in the U.S. with the unholy marriage between conservative Christians and Donald Trump. He will happily use them to further his authoritarian ambitions. They will happily use him to further their theocratic ambitions (which include repeal of Roe v. Wade, repeal of same-sex marriage and LGBTQ protections, further "religious freedom protections" for fundamentalist Christians and fewer protections for people of other faiths, etc.--all rooted in very tenuous interpretations of scripture). 

The longer this "theocratic creep" goes on in our government, the more entrenched and expansive it will become--despite being an expression of the will and values of a minority. 

These upcoming mid-term elections, I suspect, really are going to be a critical time in U.S. history for the majority (who are not theocratically inclined) to rise up and put a stop to its spread and thus enact a course correction away from theocracy and back toward real liberty and justice for all.