I disagree, vouchers give taxpaying parents and option to get their kids out of failing school systems. If you are paying taxes into a bloated public education system that doesn't necessarily provide the quality education you want your child to have,  wouldn't you want another option?  
Who cares if someone else sends their kid to a religious school using vouchers? As long as they are not taking away more tax dollars than they put in, they are not hurting anyone else.