[prower]

I always find this problem very hard to parse.

You're right that it's an arbitrary change, but on the other hand, every change is arbitrary whem you want to modify an established system.

Of course the question here is if this is the morally correct way of doing things.

Personally, this all sounds weird to me: it's like enforcing a rule where, from now on, at least 25% of your workforce must be muslim. Why should one's religion be of any concern in all this?

Same thing for gender.

If the problem is that the positions are being filled in a shady or non-meritocratic way, that's the problem to address. But I'm not sure this is what it's been talked about here.