Labour has been accused of "turning a blind eye" to husbands telling their wives how to vote as the Conservatives demanded a crackdown on family voting.Newly appointed Shadow Communities Secretary Katie Lam warned that "coercion, fraud and poisonous sectarianism" posed a threat to British democracy as she attacked the Government's planned electoral reforms.Ms Lam pointed to reports of family voting during the Gorton and Denton by-election in Feb…