Group opposed to city's immigration policy announces boycott, which local leaders call futile. A Santa Ana-based immigrant rights group that opposes Costa Mesa's immigration enforcement decision today planned to repeat its call for a boycott of Costa Mesa businesses and for civil disobedience. Local leaders disparaged the boycott plan as divisive and unproductive. Nativo Lopez, a spokesman for Hermandad Mexicana Latinoamericana, first called for the boycott in late January. On Wednesday he announced he'll take the issue to Costa Mesa City Hall, where he planned a press conference for today. Lopez, along with several local labor unions and Latino advocacy...