anti-recline device causes fight on plane/2 kicked off

Did I pay for a seat and the space my legs take up on the plane? If my knees are right up against the back of their chair is this my space or theirs? A reclining seat now is taking away from the space I paid for. Like I originally said, just make all seats unable to recline like they did with the one's in front of the emergency rows and no more problems.