The idea comes up a lot, especially in response to the US right wing party circling the wagons around some new thing. I think conceptually some people wish the left could achieve the same kind of unity, but that’s not what progressive politics look like. The constant pressure to reevaluate stances is the core feature, not a side effect of angry, online lefties. It should be a constant effort to look at the systems we have created and evaluate if they are promoting the common good. When they’re not, and some people continue to promote them, that’s an impasse.