Thanks to @bix for the pointer to this interesting article. I was specially caught by this sentence:
The ability to disregard the opinions from the group that is being disadvantaged, the ability to escape accountability for actions, and the ability to benefit from others’ oppression are at the heart of why blackfishing is so damaging.
And substitute any number of other practises for ‘blackfishing’.
White Instagram Influencers Have Created a New Form of Blackface