The line isn't even that blurry. There are caucuses. The progressive caucus has over a hundred members in the next session of congress. The "New Democrats," i.e. fiscal conservatives, have slightly more, for now.
There may be some in between but they need to make up their minds because this is the battle for the soul of the Democratic party, and if the progressives can't act quickly, 2028 isn't going to go so well, and as I've said before, we're running out of time.
The moment for bold climate action was years ago, but now we have to scramble just to manage the catastrophe as best we can to minimize the damage it's going to cause. If you think this is merely about "conflict theater" then go home, if this is a game to you then stop playing. We're running out of time.