I mean, there are literally dozens of scholarly books and papers on this topic. This is not some secret.How could you say the founding fathers didn't consider declaring independence significant when their writing says it. It was a revolutionary act.
"Thomas Jefferson wrote to a fellow Virginian reflecting on what he called “the revolution of 1800"...
Jefferson was writing in 1819, far enough after the fact to appreciate its importance."
-H.W Brands
“That was as real a revolution in the principles of our government as that of ’76 was in its form, not effected indeed by the sword, as that, but by the rational and peaceable instrument of reform, the suffrage of the people. The nation declared its will by dismissing functionaries of one principle and electing those of another.”
-Thomas Jefferson
You are confusing two different things. You are confusing a piece of paper with the spirit in which it was written.