Why single? Why mixed race? We could accept it as a mother and child or a woman and child.
I'm not European so I guess I don't care if their culture is supplanted. But maybe they do.
I'm not sure what culture you think may be supplanted here. If it's the culture of "a classic white mother holding a darker baby can't represent us", then I can't wait for it to be supplanted.
You could have saved a lot of typing by leaving it at this and saying what you meant. No reason to be coy any more. The quiet part is being said out loud now.
I honestly had no idea what the original commenter was even talking about before I started reading replies, which in hindsight was a mistake.