Bridgehampton’s Main Street was the site last Thursday of an impassioned protest that drew some 40 people who are hoping to keep a CVS pharmacy and convenience store from going up at the intersection of Main Street and the Bridgehampton-Sag Harbor Turnpike. Calling themselves Save Bridgehampton Main Street, the group expressed contempt in no uncertain terms for the planned two-story building, which is to have 9,000 square feet of retail space and a 4,400-square-foot basement.