In law there is the concept of adverse possession, popularly known as “squatters’ rights.” A non-owner who succeeds in occupying a piece of property or some one else’s right for a certain time without being evicted enjoys the ownership title conveyed to him. The reasoning is that by not defending his rights, the owner showed his disinterest and in effect gave his rights away.
Americans have not defended their rights conveyed by the US Constitution for the duration of the terms of three presidents.