Earlier quoted context omitted.
By "measure", I meant a specific methodology that compares, say, the US and western Europe. Or just one country in western Europe. For example, if France had a study that broke results out similarly to https://nces.ed.gov/naal/kf_demographics.asp Your implication is that France would simply lack an equivalent to the "Below Basic" group. I doubt this.
Most countries in Western Europe do not have 'home schooling', which is one big differentiating factor here, and those that do in general do not have numbers worth measuring. I'm sure France has an equivalent group, but I'm also sure that that group would be substantially smaller based on plenty of exposure to French citizens and American citizens. France has one of the best education systems in Europe and if you've…
(People aren't taking their kids out of schools because they want them to stay uneducated...they are doing it because they disagree with what the school considers education. But they don't disagree about things like knowing the alphabet or how to read or whatever)
Anyway, my guess was that you were probably making forceful claims about anecdata and here we are.