What does equal opportunity even mean? Does it signify a system's obligation to disburse "opportunities" evenly across its demographic? If "opportunity" is disbursed evenly, can such situation even be termes "opportunity"? The humanists, in their greedy grasp toward that which is beyond their station, imagine the world somehow denying them opportunities, rather than understand their lack of qualification for that which they covet. Monarchs and aristocrats did not employ peasants to ministerial positions, not because they were perpetuating "systemic injustice," but because they were utilizing their common sense to discriminate against unqualified candidates.
Even the Western equality before law has its limits. Citizens have different legal previleges compared with resident aliens, visa holders, and illegals. Nothing in life is equal other than death.