All[1] of them. All the kids. They all have the potential for fulfilling lives that contribute to society.
[1] Fine, almost all, there will be exceptions, but the goals of the education system should include making exceptions as rare as possible. At the very least I'll claim a belief that achieving a low enough rate of exceptions so as to make them negligible in practice.
Slightly better schools are worth this massive police state expansion? We could save many lives lost to crime each year if we forced everyone to wear ankle monitors all the time too - wouldn't that be even more worth it?
[1] Fine, almost all, there will be exceptions, but the goals of the education system should include making exceptions as rare as possible. At the very least I'll claim a belief that achieving a low enough rate of exceptions so as to make them negligible in practice.