I think that kind of is No True Scotsman, because it's an unreasonable conflation of two attributes ('really caring about x' and 'being careful with sourcing in debate/arguments'). I know lots of people who care deeply about various causes but are terrible about research, sourcing and verification in general. And some people might care deeply about a cause but do damage to it by being involved (deeply unpleasant so that nobody wants to work with them and the volunteer group falls apart, that kind of thing). Level of caring is not, in my opinion, strongly correlated with a person's value as an advocate :)

What's important is fairness and equality of opportunity.

But the real point is that if we believe that jobs will be more technical in nature and that deeper knowledge of technology and coding will be required, maybe we should be concerned with the current ratio. Thus we not only create a skills divide, but one that grows into an economic divide as the better paying jobs are technology jobs. Maybe this is an "equality" movement worth putting some energy into.