Is that true for this case?
Understanding the actual on-the-ground situation for all types of people and situations in the 10 largest countries will probably take up most of a normal human lifespan. And that's assuming they spend several hours a week, 50 weeks a year, learning.
Understanding India and China alone to that level would probably take up 30-40 years.
It seems literally impossible for the vast vast majority of people to have enough time for that ignorance to have been a meaningful choice.
i.e. This is likely the baseline default for nearly everyone, who are not especially interested in the UK or who are not super-geniuses.