You and Rs both have it entirely wrong. There is nothing remotely racist about the FACT that many Mexicans want all of the benefits of the US without adopting the history, language and culture of the US. And Buchanan correctly points this out. If they wish to retain their "culture" they can have it all---South of the border.
the FACT that many Mexicans want all of the benefits of the US without adopting the history, language and culture of the US. That's what is being seen in the SW now, they can come over, gain US citizenship, keep Mexican citizenship, vote in both countries' national elections, never learn English, never learn what the Constitution is but have welfare benefits offered to them in Spanish. Things aren't right the way they are now.