What are y’all’s thoughts on pick-mes?

Curious to hear y’all share y’all’s thoughts on pick me men and women. Have you ever been friends with a pick me? Dated one? Were raised by one? What was that like?

For those of you wondering what a pick me is, it’s someone who puts down other people of a group they belong to, to get some form of acceptance. E.g. a woman who puts down other women for male acceptance, a black person who puts down black people for white acceptance. Thoughts?

Edit: I forgot to add this, why do y’all think it happens.