This is the idea that:

“privileged individuals should defer to the opinions and views of oppressed individuals, especially on topics relevant to those individuals’ oppression.”

The idea is from Matt Bruenig who is hostile to it.

“Over the years, I have argued that ID is clearly unworkable, easily gamed, and awful for those with invisible identities and oppressed groups that are necessarily locked out of the discourse (such as the lower class).”

I’m not sure whether progressives would argue in support of this idea, or argue it’s not in fact widely supported.

Read more:

What does identitarian deference require? | Matt Bruenig

Identitarian Deference Continues to Roil Liberalism | Matt Bruenig