Democrats in recent memory who accommodated to the center have successfully repaired some of the damages inflicted by Republican administrations, and at the very least inflicted far less damage themselves by a large margin. In my mind their only major failing is that they couldn't satisfy the "buuuuuut weeeeee waaaaaaant it nowwwwwwww" style leftists who are willing to just embrace the greater evil at intervals out of spite, even though we are still trying to clean up after Republicans who are now dead and can't really expect to get around to cleaning up after the current Republican feces show in my lifetime even if we go on a straight democrat run for the entire duration...even if we went with a real "progressive" democrat (or otherwise). Allowing more damage to pile on isn't going to make it easier to fix the problems Nixon and Reagan saddled us with.