There are less than 2 million Cubans in America. Out of a total population of about 300 million. So outside of Miami, he’s a minority. And that’s why he’s a prospective VP. To court that Latino vote.
Living in California for the last 45 years I have no patience with the GOP “courting the latino vote”. Latinos who identify as latinos first shouldn’t be pandered to. My rule is that I don’t vote for politicians who play ethnic and race cards, and that eliminates Rubio.