They do need to go. Their goal is status quo and treading water.
I agree with some of the new folks who feel like impeachment shouldn't be the goal. It's too limited. Accountability and legislation need to be the goals. Impeachment is a subset of that. So is going on a press tour rager when legislation is blocked or vetoed.
Democrats need to wake up and bring the Republicans to bear and fight for the people who elected them. Treading water and whining about Ted Cruz reading Cat in the Hat don't get us there. Make him stand there until he dies of dehydration. Tear them down in a public forum. Do something.