I don't think you understand what "equality of opportunity" means. For example, it means that all children would have the opportunity to get a high quality education. Obviously some children are less bright than others, but the high quality education is offered to everyone. More over, children shouldn't be disadvantaged because of their parents failings, because that isn't fair to them. That's one of the reasons why children must attend school by law in most countries - even if the parents would prefer them to stay at home or work they must be given the opportunity to learn.
As for jobs, equality of opportunity means that everyone can apply for a particular job, i.e. the employer can't arbitrarily discriminate against say Latino people. It also means that we should try to make high quality jobs available everywhere, or ensure that people can relocate if necessary without artificial barriers. Imagine there was some bright kid just out of college who couldn't afford to move to where high end jobs in his field were. Someone might decide to help give him the opportunity to apply for and get those jobs by offering assistance to move.