Fine. But its true their intentions were in very bad taste and despite what you said, I still think their actions were provocative and meant to be provocative. ... The students were neither "pro-American" or "anti-Mexican." They were just trying to cause trouble and spite the other students in resentment of the holiday (they probably felt left out or something).
You seem to believe (like that vice principal) that you possess the ability to read people's minds. However, to those of us without your special ability there was
nothing those students actually did or said before or since that would make it possible to conclude that they intended to
provoke anyone.
In this case, because of the circumstances, there
may have been reason for the administration to
suspect that these students intended to do or say something provocative, and, if so, that suspicion would be reason to
question them about their intentions and, perhaps, to warn them that there would be consequences if they were to say or do something provocative in the future, but the fact remains that, up to that point, they had not done anything, nor said anything, which was actually provocative in the slightest!
There may be reasons for someone in law enforcement to suspect that someone has ill-intentions (out very late at night, wearing dark clothes, luring in the shadows and acting in a suspicious manner, etc.). Under those circumstances, it would be appropriate for the police to stop and
question those individuals to determine their reason for being there and their future intentions, and, perhaps, to warn them that they are being watched and that they will be arrested if they engage in criminal activity. However, that mere suspicion is not reason to arrest and convict someone. You can't just say, "I could just tell by lookin' at him that he was up to no good."
In this case, these boys were [effectively] arrested, convicted, and punished, merely because the school administrator suspected that they intended to do something (for, certainly, nothing they had said or done up to that point, including wearing pro-American clothing, was, itself, provocative).
It is a good thing for American citizens that few school administrators (and police) share in the special ability that you and that vice principal possess.