

Yes.
Japan doesn’t tend to teach its children about the atrocities that Japan committed in the past century.
China is in a similar boat.
Depending on the province, school board, and even teacher, Canada doesn’t always do a good job of teaching its children about the residential schools and related atrocities committed against the indigenous peoples of the land.
So yeah. I think it’s possible that people old enough to work and be looking for jobs (which can be as young as 14 where I live) are ignorant to the atrocities their countries committed.
The USA is actually surprisingly halfway decent at teaching kids about the atrocities committed against Black people, from my perspective. There is still a long way to go, but at least kids grow up knowing that many Americans owned slaves and that it’s wrong to own slaves. Some regions less-so than others, but still, lol
I don’t know the situation of the children that the parents are talking about. These could be homeschooled kids, etc.
Someone said something about their kids, and I believed that what they said was true. If they meant something else, they could’ve said something else. If they phrased it poorly, then so be it. Lol