You realize that's going to be almost the entire population of the US, right? The amount of people who are descendants of the population as of 1776-1789 is vanishingly small at this point. Honestly, I don't think I've met anyone who can trace their history back to Revolutionary War. Even I'm technically a "7th Generation Immigrant"

1st gen = 2 parents 2nd gen = 4 grands 3rd gen = 8 grands 4th gen = 16 grands 5th gen = 32 grands 6th gen = 64 grands 7th gen = 128 grands

I got into genealogy some time ago. Tracked my dad's male line back to Germany. When I got a gene test, like 90% of my lineage is from British Isles. Almost no German! My paternal genotype matches up with exactly where I traced my German ancestors back to, so that's legit. I forget the number of generations but it was like 9 or so back I think. Early 1700s.

So, my male line is (was German), but that's like virtually none of my DNA. I've traced ~4-5 ancestors back to the time of the revolution. Any one of those people contributed a vanishingly small amount of my DNA.

My point really is just that if you go back to the point at which you are dealing with 128/256/etc ancestors, there's a really good chance one of them was around in America then, unless your family is very recently immigrated. You're also barely related to any one person!