CHARLOTTE, N.C. — Jonathan Ocampo has called this Southern city home for six years, but, after immigration enforcement descended here over the weekend, the American citizen of Colombian descent said he doesn’t leave the house without his U.S. passport. “I’m carrying it here right now, which is sad,” he told NBC News. Ocampo said he worries that his father, a citizen who has been in the country for 40 years, could be targeted because of being Hispanic-looking and speaking what he described as