Yes, the problem is the lack of willingness on the part of school districts to enforce discipline (perhaps compounded by the fact that public schools are often hamstrung by policy in this way), and likely a similar failure on the part of parents.

Troublesome behavior in schoolchildren follow the power law strongly, where a single-digit percentage of kids are responsible for >90% of classroom disruptions. School districts should be empowered to ensure that the kids who are there to learn are able to do so.