Unfortunately, McCain is quite right. If we continue losing the Hispanic vote by the margins we have recently, in a generation or so we might not even be able to win Texas.
We saw this play out in Nevada and Colorado in 2010. The rapidly growing Hispanic demographic turned out heavily for Reid and Bennet and cost us 2 seats. Granted Angle was a poor candidate anyway, but Reid was virtually the most unpopular senator in the United States and still managed to win. Buck was actually a fairly solid Tea Party candidate, but the Hispanic vote was enough to make the difference and defeat him.
Somehow we have to win a bigger percentage of the Hispanic vote. They are voters we can get, we just have to do a better job of it. We've got to find a way to address immigration enforcement without allowing the Democrats and the media to paint us as anti-Hispanic.
You’re right. It seems Republican candidates keep ignoring this voting block and/or ostricizing them. The candidates need to come up with a Clear, Consistent, Compelling and Fair message about immigration (and other issues), and then flood the radios and TV ads in Hispanic districts.