Efforts to unionize Amazon warehouse workers in Alabama were unofficially defeated on Friday by a more than 2-to-1 margin with more than half of the ballots counted. So far, over 1,700 voted against forming a union, with nearly 700 ballots in favor. A simple majority is needed for victory, but both sides have the right to challenge the eligibility of ballots. The Retail, Wholesale, and Department Store Union (RWDSU) said it is filing objections charging that Amazon interfered with the right of its Bessemer, Alabama, employees to vote. Amazon shares were up 0.5 percent Friday; the vote count resumed at 8:30 a.m. CT. Whatever the results, RWDSU, which is trying to organize the employees, has the same legal options as Amazon: challenge the eligibility of individual voters or allege that coercive conduct tainted the election. In the latter case, the dispute would play out before the National Labor Relations Board …