Un-American Activities?

In their own terms, yes.

A Hispanic who, having been born elsewhere in the Americas as so many Hispanics were, is ineligible to become the President of the United States.

The son of a first generation immigrant, making him an anchor baby who has been an anchor husband twice; his campaign caps are made in China, whereas those of Bernie Sanders are made in the United States.

And another Hispanic, neither of whose parents was an American citizen until four years after his birth.

Sanders's father was also an immigrant, but Sanders is 30 years older than Rubio, making him a link to a very different period in America's formation.

I give you the Republican Party in 2016, profoundly un-American in its own terms.

Unlike the Democratic Party, which is really very American even in those terms.