Remember guys, I'm talking equal opportunity, NOT equal outcome.
So are we.
It's quite evident (indisputable correlation backed by sound causation) that opportunity is not equal, that it's heavily influenced by the circumstances one is born into or otherwise beyond one's control.
If you weren't born into it you have to fight for it.
Many of these people lose, and not for lack of trying.
Moral is that the opportunity is there, but relatively few people will show the same discipline to take advantage of it.
It's a nice egalitarian fantasy, but the good fortune of you and your brother are exceptions, not the rule.
Surely, many people do squander opportunities to better their situations, but to assume that this is true of all, or even the majority, of those who haven't been able to duplicate your success is hubris.