Furthermore, on several occasions, the Declaration speaks of “these Colonies” or “these States.” The Founders were concerned about their own circumstances; they owed a duty to their own people who had sent them as representatives to the Second Continental Congress in Philadelphia. They weren’t trying to free South America from Spanish or Portuguese dominion, much as they might have opposed that dominion.
Perhaps most notably, the Founders explain towards the end of the Declaration that they had appealed not only to King George for redress, but also to their fellow British citizens, yet those fellow citizens had been “deaf to the voice of justice and of consanguinity.” Consanguinity!—blood ties! That’s pretty much the opposite of being a citizen of the world.
So while the Declaration is of course a universal document, it’s also a particular document about one nation and one people. Its signers pledged their lives, their fortunes, and their sacred honor to each other, in English, right here in America—not in Esperanto to mankind in the abstract."
Arkansas Senator Tom Cotton, Immigration in the National Interest