Appropriating Oppression

What you call standing in solidarity, I call appropriating oppression.

This concept, or phenomenon, occurred to me some time ago, but I published it only recently. It's when someone takes the oppression of a group they're not part of, and acts as though it's their own. It also includes opportunistic assholes from one group highjacking another group's protest (for example, Extinction Rebellion members attending Wet'suwet'en railway blockades to push their own agenda - environmentalists highjacking territory rights activists).

An another example is a heterosexual individual acting as though they know firsthand the oppression a LGBT member has endured. This individual reacts to homophobia as though they had been directly hurt. I've seen this most often in white women (basic bitches) and white dudes (basic bros). It's when someone thinks they're being an ally, but in reality they're simply using the oppression of another group as an excuse to be triggered/outraged, and get attention and sympathy.

I wonder if anyone else has defined this as "appropriating oppression"? A quick google search says no.​