Because people always try to make it look like Jesus supports their political ideology. In Reality, they don’t care about what Jesus actually would say. All they care about is making Jesus a member of their political party because they can’t fathom the idea that they might be wrong. C.S. Lewis wrote in The Screwtape Letters that the devil succeeds over a man when he makes his religion a means to his political motives and not an end in itself. Pray for these people to actually take another look.
