again, ireland did come up from a shit position, but i think the perceived whiteness of the irish had a very large part to play (dont worry i didnt dnr those pics) at first the irish were definitely stereotyped - this is a fact - but its also true that over time irish identity came to be accepted as white more and more, if im not mistaken the main problem between the irish and other countries was just religion, and the hateful caricatures were initially weaponised by the british in order to destroy the credibilty of your catholic beliefs, so once that era of L protestantism ended, people came to see the irish more humanely much quicker
whereas compare that to south americans who didnt just believe in a different denomination of christianity, they had entirely different, unheard of belief system which would have immediately had them viewed terribly, and that perception of being barbaric while also being a completely different race was a recipe for disaster tbh, i believe south american countries basically had minimal aura post colonialism, even less than ireland, and that really impacted their global power at the time, which has led to their poor global power today
in this situation i will admittedly dnr the last two pics since im a firm believer that location impacts iq and if anything they just further prove my point (as for example in the second pic, us blacks have a much higher iq than nigerians and they also live in a better area)
now for the first pic, many factors come into play:
- pre adoption environment, the black kids likely had the worst pre adoption environment on average, the whites likely had the best
- when they were adopted, white kids are definitely being adopted the earliest which means they get into education quicker
- who adopts them, people adopting the black kids will be (mostly) black, so the kids have less of a chance of being in a rich area
- treatment post adoption, not just at home* but also just life, the glass ceiling effect you experience as a black person is very very real
*i added that asterisks by the last point because you might think im exaggerating that black kids have worse experiences at their new homes, but i think something that backs this is what football academies call "digs", which is basically when a player who lives too far to commute stays with a host family, a lot of black footballers talk about it as if it was the worst time of their life, the only black player who i've seen say they had a decent time in digs was bukayo saka, whereas when you hear white players talk about their diggs experience they tend to have enjoyed their time there, if a black kid is adopted into a high income family (which will most likely be white) most of the time they wouldnt be granted the same experience as a white kid would, which would affect their behaviour and motivation at school, thus affecting their iq
i dont even think this phenomenon happens out of malice, i think its just subconscious bias from the parents
some food for thought