Evangelicals have perverted the Gospel to fit their political agenda — much in the same way that Islamist terrorist groups have perverted the Muslim doctrine to fit theirs.
Evangelicals care about A) homosexuality (against it), B) abortion (against it), and C) guns (support them). And Jesus didn’t say a word about any of these. They ignore the things that Jesus actually did say — things like social justice, taking care of each other, doing for “the least of these”, etc.
And because Trump agrees with them on gays, abortion, and guns, he is indeed their “dream President”. The fact that Trump’s life and behavior is anything but Christ-like doesn’t matter.