Dems lost their full leverage after december. Schumer is probably crying now since he lost the game of cards with trump. The way i see it is, dems will not shutdown the govt. Its been proven and trump sees this. So their options given its midterm election time are:
Option 1: Do w.e. trump says and pass a dreamer relief with the wall, end chain migration, everify, etc. Then watch trump sign it and see him happily saying he accomplished something that both bush and obama could do.
Option 2: Do nothing and pass another CR if its possible or vote for republicans proposed spending bill, then watch trump campaign saying 'democrats refused to resolve immigration since they want ppl pouring in, they dont want to fix immigration, theyre all talk, they screwed daca deal, etc'

Either way democrats have failed themselves by going with schumer's leftist bipartisanship approach which got them nothing done in the white house. To nagivate this tough political environment, democrats should have been firm on their stance. When they say theyll shut it down, shut it down and let votes, elections, etc speak for themselves. Chasing a potential future primary election, kicking the can down the road and constantly just taking once in a while doesnt demonstrate the democrats are doing any work. It doesnt take months after months to negotiate things. Democrats know clearly what trump and repubs want, theres no point in delaying it to see if repubs change on their stance.