That's so bullshit.
What matter is of course not the difference between tuitions fees than taxes.
What's matter is that everybody, even the ones that can't afford the tuitions fees can access university. Which you can in France, which you can not in Europe.
I am the living example of that. I come from a family what would never have been able to afford me US schools tuitions fees. And still I am engineer, thanks to the European systems.