I really like your kinetic/non-kinetic distinction, and would love you to say more about it if you have time to post. I agree that it doesn't map on to the genre/LF distinction, but I also agree it may be connected at one or two removes.

I've always assumed "of colour" to be deliberate in its lack of precision, as a way of encompassing everyone who's not "white" - though having said that I'm not sure how frequently it's applied to people of, for example, Asian or Native American heritage.