For example, on page 2 there's this:
This spring, while militias on the prowl for illegal immigrants were converging on the Arizona border and, on the other side of the political fence, immigrant protesters were taking to the streets...
The (illegal) immigrant protesters who were taking to the streets in support of (illegal) immigration aren't on opposite sides of the American political fence from the Minutemen—they're citizens of a foreign country.
This is a concept that's better understood in Mexico than the United States.