However shocking the ableism in this post is, it isn't even the most shocking thing - it is that education should be optimised for work.

No: education is a human right. It should be optimised for humanity. Preparation for economic work is a part of that right for those who seek education for that purpose, but to make employemnt the de jure purpose of education and force it down the throats of everyone is an abomination. But neoliberals who have drunk the Human Capital KoolAid won't agree.