Do Unions still serve a purpose in American industry?
Right to Union (Or right to work) laws that give individuals the right to opt out of unionization in certain state have been been shown to increase the economic well-being of a state or municipality. Extremely union friendly areas (Such as Detroit and Chicago) have been exponentially harmed in terms of both industry and the public good due to heavy unionization.
Due to the highly regulated nature and subsequently safer environments of modern American industry, do we still need unions? If so/not, why?