the ‘alone on a desert island’ hypothetical means you’re the only person around. no one owns the property and the assumption was you didn’t kill everyone.. you spontaneously appeared fully grown on the island on a barren planet
Then “...the right to a speedy and public trial, by an impartial jury of the State and district wherein the crime shall have been committed...” wouldn't exist. There is no state, there is no district, there is no crime, there is no public, there is not trial.
And that makes it hard to justify that:
US Constitutional rights are RECOGNIZED to have been endowed to all people, upon birth, by our Creator
as such, i woukd have all my rights ... while alone on a desert island