In 4chan threads, particularly on boards like /pol/ discussions about interracial couples and relationships happen. There's a lot of bait and normally the hardcore nazi anons try to discourage white men from marrying Asian women ( often it's Asian guys trying to spread propaganda within the alt-right against WMAF to cope with… well, a lot of things).
Sometimes though, other memes are mentioned within. In this case, some anons joked about these half-Asian kids looking like Finnish people. Probably in reference to the Finngolia meme

The pictures are of the birthday of a popular child model, Ella McKenzie Gross, together with her Korean mother, German-American father, as well as her little brother, Roman.

"Popular child model" does not sound good, especially in the same paragraph as 4chan.