Many critics of Citizens United believe that corporations have the same rights as individuals because the Supreme Court defines them as people. The p… - Adam Winkler

Gun rights and gun control, however, have lived together since the birth of the country. Americans have always had the right to keep and bear arms as a matter of state constitutional law. Today, 43 of the 50 state constitutions clearly protect an individual’s right to own guns, apart from militia service.
Yet we’ve also always had gun control. The Founding Fathers instituted gun laws so intrusive that, were they running for office today, the NRA would not endorse them. While they did not care to completely disarm the citizenry, the founding generation denied gun ownership to many people: not only slaves and free blacks, but law-abiding white men who refused to swear loyalty to the Revolution....
Today, the NRA is the unquestioned leader in the fight against gun control. Yet the organization didn’t always oppose gun regulation....
In the 1920s and ’30s, the NRA was at the forefront of legislative efforts to enact gun control. The organization’s president at the time was Karl T. Frederick, a Princeton- and Harvard-educated lawyer known as “the best shot in America”—a title he earned by winning three gold medals in pistol-shooting at the 1920 Summer Olympic Games. As a special consultant to the National Conference of Commissioners on Uniform State Laws, Frederick helped draft the Uniform Firearms Act, a model of state-level gun-control legislation....
Frederick’s model law had three basic elements. The first required that no one carry a concealed handgun in public without a permit from the local police. A permit would be granted only to a “suitable” person with a “proper reason for carrying” a firearm. Second, the law required gun dealers to report to law enforcement every sale of a handgun, in essence creating a registry of small arms. Finally, the law imposed a two-day waiting period on handgun sales.
The NRA today condemns every one of these provisions as a burdensome and ineffective infringement on the right to bear arms.

Four years after Citizens United, the Supreme Court expanded the rights... in the Hobby Lobby case. ...The company ...was allowed an exemption from a federal rule requiring large employers to include birth control in their employee's health plans. The Hobby Lobby decision has since been cited to support the claims of businesses whose owners do not wish to provide wedding services to same-sex couples on grounds of religion.

Corporations did not win their constitutional rights in quite the same way as women, racial minorities, or gays and lesbians... [who] pursued their claims in both courts of law and the court of public opinion. To achieve lasting constitutional change... required more... Lawsuits were backed up by broad-based, popular social movements that demanded rights for those who had been denied the original premise of We the People.