Deputy Ben Fields Fired over Slamming Student

I'm sure all the social justice warriors are rejoicing.

Arrest video fallout: Spring Valley High Officer Ben Fields fired

(CNN)The South Carolina deputy who slammed a disruptive student on the floor and tossed her several feet has been fired.

Other students in the classroom at Spring Valley High School caught the incident on video.

Richland County Sheriff Leon Lott suspended Deputy Ben Fields without pay, and then fired him Wednesday.

Fields violated police regulations when he threw the girl, the sheriff said.

Fields was the Spring Valley High School resource officer whose actions Monday were recorded by students and ignited a firestorm on social media. Among the criticisms: his admitted use of "muscling techniques" to get the student out of her chair.~snip~

There's an argument to be made that the officer over reacted but what's really missing here is the outrage over the student being disrespectful to the teacher and principle and to her fellow students.
Let's just say for a moment that government schools ain't about indoctrination but education, defying the "powers that be" disrupts the learning environment.
The student sat through several attempts to get her to leave and purposely defied each one so the question that needs to be answered is what now?
The only option left was to physically remove her from the class room.
So while we're having a discussion about the how we also need a discussion as to the why.
Why did the situation have to escalate to the point of physically removing the student. What has gone wrong with society that this kind of thing happens?
As I said, you can argue that the officer over reacted but at that point what was anyone supposed to do?