Yes, there are schools where everyone gets a good education without a pre selection criteria. They do not, however, posses the property that almost all of the students pass and almost all of the students know the material. You can't get all three conditions to be true simultaneously.
Of course there are bad teachers.
The onus of learning should be on the students? Sure. But then you aren't going to get almost everyone knowing the material because most people don't want to learn.
I'm sorry, I still don't understand how these three things can't be filled simultaneously, you just keep saying they can't without giving me any more reason. Feel free to respond by explaining or not, I'm just curious why that's the case. I agree that a large number of students don't want to learn, but a lot of those students also just don't learn, in which case why are we paying to "teach" them?
In my experience, children are very curious. I'm very skeptical when teachers claim otherwise, despite them having experience with many children, since they're often the ones pummeling that curiosity out of them as part of the job. (http://www.johntaylorgatto.com/underground/toc1.htm)
Of course there are bad teachers.
The onus of learning should be on the students? Sure. But then you aren't going to get almost everyone knowing the material because most people don't want to learn.