Question for Black/mixed moms with mixed kids

One of my friends (a Black/white mom with a white-presenting daughter) was chatting with me about a post she saw on Facebook.

The post said:

how come the black community gets angry/defensive if someone with a black parent a mixed parent identifes as mixed? and then the black parent is accused of "feeding their child antiblackness". this energy is NEVER given to someone with a white parent a mixed parent.

She said that she can 100% empathize with people who have one Black parent and one mixed parent and are in this situation—especially since many will be Black-presenting (Ryan Destiny–like). She also mentioned getting pushback at times because her daughter wants to identify as biracial. (She moved to the UK, but she’s from the U.S.; the white father is from the UK.)

My question for the moms: how often does this happen to you? Is this common all over the world or just America? (I assumed the poster was from the U.S. because they mentioned Halsey and Victoria Monét as examples.)

I read some of the comments, and it seemed like many other moms agreed—or at least were having thoughtful discussions, even if there wasn’t 100% agreement. There were also some people trying to stir up discourse and accusing the poster of being a “troll,” though.