I agree with almost all your points, especially on the idea that the best dropouts are the ones are the ones who would do well in school anyways. However, I am not sure that someone who can't follow a curriculum will translate into someone doing poorly when a curriculum is not given to them in the "real world". Some people thrive on not having rules to abide by. Curriculums, especially those created in the school system, are not a one size fits all, so you might occasionally get people who do really bad under them.
Steve Jobs and Sean Parker don't actually seem like they'd do well in school. Their temperament and personality types run counter to how school is structured, while in companies people are more capable of getting away with a kind of free-wheeling style.
I'll speak for myself when I say I hate school. It's not about education, I wonder when it was. Not anymore for sure, more about that piece of paper at the end of it all that says "you can get a job now". It's about not having to do the work yourself and on your own initiate. It's about teaching you to be an employee.
I never saw the value in it. If one's considering going for it any time, even once in a college, my advice is GO. Even if you fail, at least you'll sleep a little better at night.
Educations' flaws are deep in the system itself. It comes from the Industrial mentality of worker lines and an Enlightenment paradigm of the mind, both of which at best are fallacious. Education can't be given. You're not extracting valuable skills by bullshitting that English paper.
Education is something you honestly have to desire and seek.
