"[...]you can at least know that there is some semblance of equality in opportunity even if not outcomes." Judging from the way people go about discussing thes

"[...]you can at least know that there is some semblance of equality in opportunity even if not outcomes." Judging from the way people go about discussing these sorts of topics, I would say that outcome is a more widely-used "determinant" of fairness than opportunity. Outcomes are always seen as proxies for opportunity (or lack of it).