This isn't much of a poli Sci question because I would expect very differing answers from political scientists, or at least, I wouldn't know how they would answer it.

But to me, it isn't really endless dread. In the situations that what you are describing does happen, we try to study it, make observations on what's happening, find the cause of the issue, and look for solutions.

In fact, I find that the more I study voter behavior, elections, and political power, the less emotionally attached I become to politics. That doesn't mean I'm apathetic, I still care deeply about my political stance. The point is that when I see something I don't like happening in politics, I don't get angry, I become curious and sometimes, even fascinated.