Pro-Immigration Protests or Racist Pro-Revolution Demonstration?

This Mexica Movement page doesn't seem calculated to persuade:

One of the more negative parts of the march was when American flags were passed out to make sure the marchers were looked on as part of "America".

This is a photo site covering the march in LA on the 25th, and some of the signs being carried are pretty interesting: "This is OUR continent, not yours!", "Stolen Continent!", and "All Europeans are illegal."

The main page is interesting as well. They claim to be anti-violent. "We are also not part of the Spain-centric and error-filled "Aztlan" ("Southwest" liberation) agenda because we are for the total liberation of our Anahuac continent ("North America") not just to where the European Spaniards drew their colonial borders on our continent." Liberate the whole continent but no violence? They have their job cut out for them. And no assimilation and "Total end to European occupation of our continent", so I have to conclude that they are explicitly racist despite any explicit claims to the contrary.

While 10-12 million illegal immigrants seem like a real problem, I don't see the likely responses as productive. For reasons which I don't understand, some conservatives- who usually disdain anything smacking of French social or economic policy- want to emulate the French approach to immigration: guestworkers. Did they somehow miss the TV coverage of all the rioting Muslims in France? What makes them think that guestworker programs are good policy? Why would the French Approach work better here? Maybe conservatives are cognitively disabled: They didn't learn from Alcohol Prohibition either. Better to accept the reality of several million ppl who are here already and legalize them.