Most of the rank-and-file conservatives with whom we might interact get their information from conservative media sources. Republican politicians are ensconced within it as well. Inside the walls of that closed environment, facts that do not jibe with conservative ideology or the conservative interpretation of events are twisted, turned on their head, or simply ignored.
I am convinced that most rank-and-file right-wing Christians are sincere and not cynical in the politics they embrace. Yet they have been so egregiously misled that even though they might be sincere, they are sincerely wrong according to the most fundamental moral and ethical imperatives of the Bible.