"Lefties" compromise all the time and it still doesn't get us anything.  Take the ACA.  Republicans were asked to participate (the GOP excluded the Dems from writing the "replacement" - 13 male Senators wrote it alone in a room with no hearings).  Republicans even got 52 amendments added to the ACA and then they turned around and not one voted for it.  Big difference.  ps:  the skinny repeal version was written by Mitch McConnel alone over lunch - look it up - no input from anyone much less the democrats.