You can't "stop the Minutemen." They are not breaking any laws and are acting fully within their rights (unlike the illegal immigrants they are identifying and having deported).

Good luck though, hopefully you'll create such a spectacle the media will cover the event and the Minutemen will get some good P.R.

Here's an idea, why don't you try to illegally enter another country (try New Zealand), carry forged documents and see how you're treated when you are caught. Would you really hold it against a group of citizens, whose country you violated, to demand your deportation? But of course that will never happen because most of you at least have the energy and convictions to work within your country of citizenship to make it a better place - unlike those illegals who flee their own countries - and are often disdained by their own fellow countrymen who choose to stay as patriots in their homeland.