Then you obviously have no clue about the state of public schools. Be ignorant if you will, but expect to be mocked.
My wife works at a public Junior High School. I believe I do know the state of Public Schools.
The girl didn't have a weapon, the girl didn't make physical threats. The girl was just performing an attention grabbing sit-in. Why was a resource officer required to arrest her? And if she didn't need to be arrested, the resource officer shouldn't have been called.
School Resource Officers are not the principal's behavior-enforcing 'muscle.' They are there to protect the safety of the students and staff.