You said earlier that "precisely that tranquil detachment is a strawman and you are just projecting." But the Dhammapada is all about tranquil detachment. So I was engaging in no strawman criticism of Buddhist monism.

What you now call "the full distance" of this therapeutic path is likely to beg the question. What counts as "authentic" Buddhism will be a matter of interpretation. I'm interested mainly in monastic, Theravada Buddhism. I'm no expert on this, but it's not hard to find evidence in Buddhist texts for the kind of Buddhism I have in mind.

If you agree there's freewill, I don't know why you think my account of autonomy runs up against "large chunks of, not only neurobiology, but also psychology." My account is straightforward: limited self-control is about the isolation of a system via filters and the potency of an internal control center (e.g. the cerebral cortex).