FWIW, I don't think coming up with ever more fine-grained categorization of what constitutes marginalized persons and putting that in the CoC is the right way to go.
One can always come up with more categories of marginalized people, and trying to enumerate all of them in a CoC is IMO impractical
To section 2.5 ("Be friendly and supportive"), I would like to add after the first paragraph:This includes being mindful of the abilities of others; nobody is born an expert in anything and we all had to learn at some point. Be supportive of newcomers and learners. Do not be patronizing or condescending.I agree and support adding this paragraph.