I would not call marriage, voting, and so on priveleges. If a law marginalizes a right, the law is flawed and you have the right to contest that law and change it.
Marriage requires participation by at least two other people plus legal recognition by the State and that is what makes it a privilege granted by the State and not an unalienable right. It becomes a legal right by equitable access afforded to all which all marriage laws in all 50 USA states now provide.
Voting also is a process initiated by the State via elected representatives chosen by the people, it requires participation by many, and that also makes it a privilege. It becomes a legal right by equitable access afforded to all which federal and state laws now provide.
Marginalization applies only if some people must meet different standards than are required of other people in order to have access or protection under the law.