The citizenry didn't sell it, the SCOTUS did, by declaring money free speech, and corporations people. Now corporate business owns the government, and citizens are just the slaves.
Citizens own the companies, citizens have free speech, citizens that form a group, such as a corporation, do not give up their right to free speech when join the group.
Your mistake is thinking of incorporation papers as a living breathing human being. Contracts, like incorporation contract, are not people. I know this is hard to get a grasp of based on the false premise that has been proffered up by the folks that want to silence people of certain groups.
The SCOTUS did not rule that corporations are people, the SCOTUS ruled that people don't give up their rights by joining a group, such as a corporation or union. Thus it is against the constitution to restrict what the people of a group can or can't do simply because they are a member of the group. Obvious exception for military personnel who evidently sign away their right to free speech when they join the military.