So you're saying that the mobility was a direct result of oppressing minorities? That's certainly a take. (See, we can both play this stupid game.)
At the end of the day most of those downtrodden minorities you think you care about ultimately wound up creating successful ethnic communities, before we adopted, at the behest of people like you, central policy that dismantled them starting in the mid 20th century.
At the end of the day most of those downtrodden minorities you think you care about ultimately wound up creating successful ethnic communities, before we adopted, at the behest of people like you, central policy that dismantled them starting in the mid 20th century.