>Or some groups of people?

I've deliberately not singled out any specific group of people but there is some evidence from Sociology and Biology studies that certain genetic or social groups of people will not have as much interest or understanding of computers.

Of course the social groups can "fix" this much easier, provided they have a desire to do so.

But again, not mentioning any specific groups specifically because it is not necessary. You can get the same results by replacing "computer skills" with any other skill or job and repeat to get the same results.

>I don't think any diversity initiative calls for random people to be inserted into jobs.

The assertion of the comment I responded to was that "People can learn on the job and can become not 'bad'" and asking if maybe there is something that makes some people bad at computers naturally, to which I responded as you have seen.