You don't understand — those are the good parts

The rest is far, far worse.

Say what you like about the tenets of Constructivism, Zed, at least it's an ethos. I'm surprised that you'd have beef with it — you don't even like Papert's Constructionism?

As easily misinterpreted and misapplied as liberation pedagogy can be, at least it gives the non-subject-matter-experts something to apply themselves at, something they could actually help children with even if they're as dumb as a bag of rocks. It's definitely not a good fit for you, but it's far from worthless.