I don’t object to shoes in even odder colors than I have - I just genuinely couldn’t see those shoes work with regular pants colors. You find green shoes terrible - I get that - but color wise it’s a fine match for blue or brown pants and according to how I see color matching a better fit than the aforementioned dark brown boots with light washed dad jeans. You can argue those brown boots are better suited for classical outfits but plenty of people aren’t wearing them with that (and frankly don’t care..). As I said before I agree with your main premise but feel you sort of objectivize odd colored shoes as well (without considering how they could be worn as they don’t fit your notion of CM)