We are all sinners, so that doesn't mean much.
I meant it in more of a, "Yeah, my great-great gran-pappy and his peers did some horrible sh*t so that I can enjoy the things I do today". type of generational sin.
I didn't steal any land either, but I'm a direct descendant of the peoples and systems which "invaded" north america, and furthermore, I enjoy rights and freedoms today as a direct result of that "invasion".