I can't help but notice nothing you're arguing is in relation to which part of the system should be doing the mapping from abstract keys to actual letters. As such I don't see anything to engage with…

(It's also a bit strange that you argue your freedom of choice to use Colemak and then immediately proceed to call two other layouts "abominations and shouldn't exist". And this is where I'm cutting my participation in this course, because even though I absolutely agree they exist, I'm not interested in discussing objective advantages of keyboard layouts over each other. If you're arguing ergonomics, you need to accept that for a lot of people the thing they're used to is the most ergonomic because the cost of adjustment far outstrips the benefits.)