Not exactly.
Values have a hierarchy. You can't (effectively) agree to painting everything the color blue, if you can't agree what the color blue is.
And you will run into a very similar issue when everyone starts objecting to the pink you have spread everywhere, despite supposedly agreeing to the color scheme.
I guess, to use the terms of your analogy, I don't think people disagree on what blue is. "Don't add backdoors to e2e encryption" is blue; and plenty of people who are coded all over the political/ideological spectrum recognize it as blue and want the wall to be blue.
You seem to be saying that people can't paint together unless everyone agrees on who holds the brush, what brand of brush is used, and what everyone's broader philosophy of painting is.
> Not exactly.
But then you go on to describe exactly what @Brendinooo described, just under the guise of your system of "value hierarchy." The problem is that you can always default to "our values are hierarchically misaligned" and then never have to do any coalition building ever.
So how do you solve that? Because it seems that you can't.
> if you disagree with me on the other stuff
This part is too broad.
Hierarchical values are just that. Not wholesale. We call that nonsense, e.g. I believe pigs can fly, therefore the sky is red. They are making an ontological error.
For a Christian, a top maxim in their value hierarchy would be rooted in Jesus' famous commandment: "Love the Lord your God with all your heart, soul, and mind." Now, if you're an atheist, this might be nonsense to you. You might not believe that Jesus was resurrected or that God even exists. To you, these are fundamentally irrational statements ("pigs can fly," etc.). Under your system, if you were an atheist and your opposition was a Christian, you could never possibly build a coalition because there's a disagreement at the top of the value hierarchy.
But this seems wrong because people of different creeds and value systems do stuff together all the time. Or am I misunderstanding your point? What I understand @Brendinooo to be saying is: "we may not share the same moral framework (or value hierarchy, using your term), but we do agree on X, so let's do X."
> So how do you solve that? Because it seems that you can't.
By design. Activists and left-wingers in general enjoy losing and being underdogs and infighting constantly
Funny, how those in a hierarchical system political system struggle so much to understand, hierarchy.
It's per the usual for extremist ideologies, chock full of hypocrisy and nonsense.
Note that, I have no problem with conservative or liberal value systems...
I don't know, I've noticed this in the right as well. I think there's always some degree of purity-testing to any community, though I agree there is more on the current (radical?) progressive end than average.