> an inequality of outcome, on the basis of race or sex is the best indicator one would have of an inequality of opportunity.

It's good if you use it as an indicator, but it's currently used as "evidence" and as a justification to give certain advantages to certain groups under the (almost always unproven) assumption that there's inequality of opportunity. For example: quota laws, and affirmative action in general. Quota laws and affirmative action that are notably pushed by progressive mob that I talk about, so I don't see the mischaracterization.