Democrats usually come with pretty decent policies that are aimed at helping us solve real world problems.
Republicans almost always come with deceptions aimed at keeping us from seeing that we're about to get royally fucked. Again.
If you create enough of a problem to evoke a fear reaction, people will listen to (and are likely to favor) your proposed "solution", even if they know they'll suffer from it. Make them afraid enough, and they'll demand hardship in the name of relief.
--James Madison