Conservatives are, for the most part, reactionaries fearful of change, diversity, and expressions of individual liberty; the hostility toward same-sex couples and transgender persons by most conservatives is evidence of that.
Conservatives are, for the most part, ideologues, adhering blindly to sanctioned doctrine and dogma, eschewing facts and evidence that indeed conflict with that doctrine and dogma. Conservative advocacy of such failed and discredited fiscal policies as trickle down economics, tax cuts for the rich, and balancing the budget on the backs of middle income Americans are examples of the blind adherence to that dogma.
And conservatives are, for the most part, authoritarian, judgmental, and hostile to dissent most on the right feel the need to compel conformity they are, in essence, control freaks. Unbridled, full-throated debate in the context of a free and democratic society makes most conservatives very uncomfortable. They see such debate as messy and the purview of mobs seeking to exact physical or material harm on those who engage in offensive speech. The many Duck Dynasty, anti-PC, let people be who they are threads started by rightists in this very forum is evidence of their discomfort of dissent, debate, and disagreement.
Conservatives can, for the most part, be summed up as those who wish to reinstate an idealized American past that never actually existed to begin with; a past that was in no way ideal for millions of African-Americans, Hispanic Americans, gay Americans, and women a fact most conservatives seem incapable of comprehending.