Sure, and those groups almost always believe they are the good guys, fighting against some group that does and exists to do bad things.
The point is, if you are going to write of a group (presumably, the other political party) as bad beyond redemption, you better have a damn good reason to think that you are the historical exception.
The point is, if you are going to write of a group (presumably, the other political party) as bad beyond redemption, you better have a damn good reason to think that you are the historical exception.