Disney definitely had the right to kick all of them out, but I'm also on the side that feels it is too harsh. And while it may be convenient for Disney to get all of the kids who were fighting out of Disney to just force the entire group to leave in the middle of the night, there are tons of things that our law enforcement can do that are "convenient" to find criminals but those are illegal for a reason.
I think everyone is too busy thinking about the Pop Warner brats that they have encountered as opposed to the entire group. And as stated before, not many kids have the luxury to pick and choose between football teams. And if you really want to play football, you're going to play football no matter where and how you have to. Plus, what kid would pass up the chance to go to Disney World? And how much control do you have over your team-mates anyhow?
I think it was a bit excessive to kick them out in the middle of the night. As for getting rid of the kids who were fighting right away...why not call the police immediately? I think there would be no better lesson to these students and their parents on what happens if you don't control your kids than having to bail them out of jail. My teacher told us all the time that if we got into trouble it would be our parents who would have to fly out to Florida and bail us out, that he would have no problem leaving the troublemakers behind. That would have solved the problem, and put a more of an immediate stop to the fighting, don't you think? And then Disney could have kicked them out the next day. (Plus they would have trouble competing in Pop Warner because some of the students would be in jail...go figure)
And yes, in terms of whether this is truly classism or not, the question isn't whether Disney has the right to enforce the policy, but the question is truly how many times has Disney NOT enforced the policy when it should have been implemented? That is the real question. Oh, how so inconvenient that we never have statistics on that...