I love how we are now back to more hypotheticals there is so little fact in this thread it's like Fox news.

The "kids" were 15, no wait, they were college kids

They might have gotten drunk/thrown a frat party.

The lady may have deplaned.

All perceived biases generated to justify the OPs actions which were quite wrong.

The only facts are:
1) nobody has any clue how these people would behave once the plane got in the air. The whole boarding experience is noisy and raucous and they were happy. It's all biased conjecture.

2) the OP aggressively pursued action to have the people ejected from their seats to favor him, while breaking the rules himself, risking a delay to the flight for everyone in the process.