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 gone to school there it is almost un-thinkable that you would not have achieved at least basic reading and writing skills.
There are people that fall through the cracks of the education system, but even children of illegal immigrants are required to go to school (and it's free).
Marine Le Pen wants to change this by the way, that's double stupid because (1) the chances they will end up staying are fairly large and (2) if they can't read/write they will end up in crime in larger proportions than otherwise.
(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.
Well, that anecdata is based on having spent a lot of time on both sides of the Atlantic and I really can't remember anybody ever in Europe that wasn't literate past the age of 10 and I've met enough people in the USA that were extremely nice but could barely write their own name that I don't feel the need to turn every comment about this subject into a paper complete with citations.
The US does not bother to report their literacy figures to the various global bodies so that makes comparing them a little bit harder than it normally would be but I'm fine to let me personal experience guide me in this, let's be happy this was about literacy and not about world history or geography.
You seem to get a lot of pleasure from these sniping sessions so consider me happy to oblige you as a target.
Your implication is that France would simply lack an equivalent to the "Below Basic" group. I doubt this.