2. Not actually possible. If Kant is so complex, and I can find several notable and respectable writers who take the position I'm putting forward, you can't make this claim. Its exactly the same as I'm objecting to above. It is a standard response which is not actually capable of being made on the writings Kant left. The interpretive process gets us here, fairly squarely. — AmadeusD

Show me in the text where Kant says noumena is physical. You cannot. End of story.

Henry Allison: Takes the dual-aspect argument on and imo compellingly.
P.F Strawson makes similar comments in Bounds of Sense
Lucy Alais doesn't commit, but is heading in this direction, from what I've read (but that could turn out to be embarrassingly unhelpful)
Schulting seems to presuppose the noumena as physical
the SEP on Qualified Phenomenalism seems to also support this, or at least run over why its reasonable. — AmadeusD

I imagine out of all of these SEP might hint at such. I doubt very much any other states noumena is physical. you are jus trawling for secondary commentaries for evidence instead of presenting primary source quotes ... which makes me wonder if you have actually read COPR? Many people pose as if they have when it fact they simply did a course on it and were spoon fed information via a secondary source. Perfectly understandable as not everyone has the tiem or inclination to sift through such a dense volume.

It's not a blindness but a sensible intellectual humility. All we know is this world. We can have no way of knowing if there is more. I think your assertion that most of the population think this world is all there is unsupported by the data: It is estimated that more than 85 percent of the global population identifies with a religious group.

I'd say those who want to believe in something that cannot be known to be true are the ones wearing blinkers. — Janus

You think the Kant's description of the unknowability of the in itself is a religious dogma, because you don't understand it. You think he's projecting an unknowable something. Meanwhile, 'the world', which you so confidently proclaim our knowledge of, is itself not the knowable, familiar and determinate realm which you so casually believe it to be. So you categorise this kind of argument, and that of the original post, as being kind of religious, which is why you think them dogmatic. It's just completely transparent, and it's the opposite of intellectual humility.