In my opinion, the job of politicians is to free me from having to deal with politics. That is why they are called "delegates" (in my country at least), because people delegate that job to them.

Having to consider every minor political issue would be the opposite of what I want.

I agree that maybe some middle ground could be better, though. The parties are too coarse grained, there is no party I agree with on all points. I suppose others feel the same.