Hey Jack,
I’m not bad-mouthing Kant. I think he was a phenomenally good and generally consistent philosopher. I just think he wasn’t critical enough of Hume. His denial of the possibility of knowing the thing-in-itself was based more on Humean epistemology than his own construction of the subjective categories of thought, and this is where I find fault with him: that it doesn’t logically follow that because your mind necessarily imposes upon sense experience a framework for interpretation (particularly with regards to space and time) that therefore you cannot know if reality actually has these qualities. Moreover, the conclusion that even the self is ultimately unknowable is - while I wouldn’t deny, partly true - using the wrong approach to knowing the self. The idealists understood things better here, especially Fichte, I think, but their development of Kant’s ideas led philosophy down a false path that we still haven’t recovered from.
Anyway, that’s my opinion.