Sorry – I was watching our President speak. Here’s your answer:
Especially with all the publicity, I am very concerned that the Minuteman Project will not be able to screen all participants for links to white supremacist groups, hidden agendas, etc. and something bad happens - I don't want any innocent killed. Or, perhaps, that they become a (willing?) target of violence and then have to use self-defense. It's just too much like pouring gasoline on the fire. We don't let private citizens enforce speeding laws either.
I guess, bottom-line, I believe these people could be more effective elsewhere. So what if one month per year they lower border crossings in a few spots? Coyotes will simply go around them, and make the Border Patrol job more difficult and dangerous. If some Border Patrol agent gets killed because of the Minuteman Project, will you at least agree that I had a point?