The rise in the Hispanic population in the United States is problematic for the GOP, but so far it's been quite slow. In 2004, Hispanics made up 6 percent of all voters. That ticked up to 7 percent in 2008 and 8 percent in 2012. Census voting and registration data shows that Hispanics make up significant chunks of the population in some key states, but they are not yet a well-organized voting bloc.
The takeaway? Hispanic citizens' lower turnout and registration rates have so far limited their political impact. But if the significant share of Hispanic non-citizens gain a path to citizenship and actually start voting, the electoral map could change much more quickly than what the slowing changing demographics of the country suggest. And that would be a bad thing for Republicans.
And everybody but Republicans has always known this. Stupid Party, indeed.