kek
IQ is a hereditary thing. No such thing as high IQ culture unless you mean environmental influence which accounts for a fraction of your intelligence as you come of age. Up to 95% of inventions in the 20th century were the work of white people.. chiefly Great Britain whereas some 5% can be attributed to Japan. Jews have become our overlords because their elite has interbred with Europeans over the centuries. Genes are destiny.
There is no real way to gauge how many Brits have been brainwashed as there is no free speech on Commie Island. They've had to learn to live with being prisoners on that multicultural rock.
Does it matter? Boomers are on their way out. It's very hard to undo conditioning especially when it's carried out on children or impressionable young people.
It's a heretical teaching that was spread by people like Scofield. Heretical in that it's virtually unprecedented in the history of Christianity when you look back at its 2000-year long timeline. Gentiles had always been taught they were blessed whereas the Jews had fallen from God's grace.