Your interpretation of what I was saying was clearly adversarial and uncharitable so I just got tired of it. It's entirely possible to have high standards for everyone (including the "stupid") without reducing the quality of the curriculum. But you're not interested in having that discussion because you're grinding some other axe about what you perceive to be the ideological takeover of the educational system.
>What's the fallacy in teaching everyone the same things? That seems like a good way to equalize life outcomes and give everyone the required skills for succeeding in contemporary society.
My position is that kids should be taught math at an earlier age and schools should be properly staffed and funded to ensure positive learning outcomes for all students regardless of their socio-economic background because that will lead to more equal life outcomes.