Teachers in American schools are usually shit-scared of their students, which is the exact opposite of how things are in Russia, China, or even India.
There are many reasons. Parents and students wield too much power in the American school system, and the idea of tying a school's funding to local property taxes makes this worse.
In addition, America lacks the cultural norms of respect and deference for education and educators that are present in more traditional societies like India or China.
Well there's also the whole "school shooting epidemic" thing. But sure, the 3 billion people in those three countries are all fairly comparable.
China:1.4 B
India:1.35 B
US:0.3 B
There are many reasons. Parents and students wield too much power in the American school system, and the idea of tying a school's funding to local property taxes makes this worse.
In addition, America lacks the cultural norms of respect and deference for education and educators that are present in more traditional societies like India or China.