So we could have freedom from the British
It decreased and very significantly so!
Most of native Americas died of diseases brought by Europeans; but some were also killed directly by the Europeans. Many also mixed with the Europeans (by marriage or rape...) so there was also a mixed indigenous-white population.
So outside forces push them to one side. So say if you talk to someone who agrees with one side of the court case, they could lean you to the side they agree with. That could potentially obstruct justice.
Answer: Madagascar. Madagascar is the largest island with an area of about 226,658 square miles