> Kids that "don't want to be in school" need to be treated with care and shown the value of education.

I have yet to see a suggestion on how to do that, that isn't obviously unworkable.

> Not ejected out of the system to protect teachers.

It is not teachers I worry about, it is the other students. Peer pressure matters and so put kids who want to be there with kids that don't and some kids will decide they don't want to either. (the reverse is also true, but there is no way to know and I wouldn't risk my kids who like school in an area where many kids don't want to be there)

Yep that's definitely fair, to not want to put your kids in a school which has a large population of troubled children.

But to the original point I was trying to make, troubled kids don't automatically mean they don't deserve education or we should allow them to fail out or give them the option of leaving primary or secondary education. We should really be making every attempt at figuring out ways to make them stay in school, given how stark the difference in outcomes are.