Teaching those who don't want to be taught is thankless. But how much can one stand from his ingrate students? If young people do not want to get education should anyone insist? You decide.
This teacher is far from being the only one who is treated like this by his students. It never happened at the times of the USSR. Nobody could even imagine things like this! When people got so much freedom, not everyone learnt to handle it, if they acted like this in Soviet Russia they would be severely punished. The country seems to need Stalin back!