He doesn’t think it is fair that some kids get help from their parents at home while children who come from disadvantaged families don’t. It’s an issue that goes well beyond France, and has been part of the reason that some Americans oppose homework too.
This concern for equality has been satirized by Kurt Vonnegut in his story, Harrison Bergeron:
...In that brave new world, the government forced each individual to wear "handicaps" to offset any advantage he had, so everyone could be truly and fully equal. Beautiful people had to wear ugly masks to hide their good looks. The strong had to wear compensating weights to slow them down. Graceful dancers were burdened with bags of bird shot. Those with above-average intelligence had to wear government transmitters in their ears that would emit sharp noises every 20 seconds, shattering their thoughts "to keep them…from taking unfair advantage of their brains."
I have nothing to add, except to remind people that the story does not have a happy ending, Harrison breaks free of his device and performs a beautiful dance, the likes of which had never been seen before. But then, the Handicapper General, Diana Moon Glampers shoots Harrison and his partner, and equality is restored.