Would you deem this statement, "This is our continent we were here first" as a good or bad argument for one trying to defend that there is no such thing as an illegal alien?

When the Senate Bill 1070 was passed I took to the streets with my video camera and documented some moments. I remember hearing, “This is our continent we were hear first” by an American-Mexican with a bull horn. I have a link if you’re interested in watching it. I won’t post it here because it might be considered self-promotion which I have no intentions of.

Great answer to those who can argue for or against the statement, while giving an understanding of the opposition (giving credit to the intention of what might be considered valid but in the end countering it with perhaps more sources for your opinion.)