The complicated part is the "why" of their behavior, which can range from an antisocial personality disorder, to not getting enough attention at home.
Sadly many of the cause of behavior problems is from systemic issues like poverty, or poor mental health services across the country.
The bottom line is that neither the kids nor the teachers want to, or deserve to, deal with the byproduct of other failed systems.
The failed systems should be fixed, and services provided to these kids to the extent possible, but OUTSIDE of a classroom setting.
The cost of past failures can't be borne by the students and teachers in the public school system.