Again: Yes, the GOP is evil. So why can't elected Dems understand this? It is absolutely fine to be mad at a party that seemingly refuses to accept this reality, especially because Republicans keep getting away with it, never get punished in any real way, and as a result the public pays the price despite doing the only thing they can do (vote).
Republicans: "OK, we're gonna hold the football, and you kick it."
Democrats: "Sounds good."
Voters: "Don't! They're gonna pull the football away again."
Democrats: "They would never do that."
Voters: "They've done it EVERY TIME!"
Republicans: "We won't do it this time though, promise."
Democrats: "See? They promised."
Voters: "So what happens when they pull the football again?"
Democrats: "They can't, it's against the rules."
Then the Republicans pull the football away and Democrats end up on their asses and are somehow SHOCKED... and then go back for another go around!