From this:

Served over the airways at WBAB Radio in Babylon, critics of a parody that include the words "no green cards, just right" call the song an un-appetizing array of insults and slurs...

"I felt insulted," said Reverend Allan Ramirez of the Brookville Reformed Church. "I felt that I was being treated as less than human."

The parody, played on the popular Long Island radio talk show, Roger and JP on WBAB, is a fake minute-long commercial...

The d-j's insist they never intended to offend anyone. In fact, one of the hosts, John Parise, himself of Hispanic descent, says it's one of many parodies the duo plays on its morning radio show, titles which include "Brokeback Steakhouse" and "My Immigration", a parody of the popular Who song, "My Generation."

More obsequiousness and outright groveling at the link. I haven't heard the song and I don't know where it came from. However, many similar parodies are produced by companies that specialize in that sort of thing. I highly doubt that anything that a normal person would consider racist would be provided by those services.

Rather, I'm going to assume that this is just a power play, and one perpetrated with the apparent assistance of someone with a quite interesting link.

As the second link shows, during the fight to prevent illegal alien clown houses, that Reverend was called a "friend" by Mexican consul Arturo Sarukhan:

"They are my friends and they have done a fantastic job in defending the day laborers."