But "squatters rights" are in fact the law... So a party "squatting" and thereby becoming the new owner is not a counterexample to the statement that "Unlawful

But "squatters rights" are in fact the law... So a party "squatting" and thereby becoming the new owner is not a counterexample to the statement that "Unlawful acts, performed long enough and with sufficient vigor, are never enough to amend the law." The squatters are not amending the law, they are acting in accordance with it.