In the Bible it is said "Render unto Caesar what is Caesar's" but "No taxation without representation" is nowhere to be found. And it is clearly stated that we have to submit to earthly authorities (Romans 13:1-6).
So, on what Biblical grounds can we justify the American Revolution? Try as you might, you will find none.
And this is not surprising because the so called "Founding Fathers" were not Christians. Some were "Deists" (which was a polite way to say "agnostic") and some were outright atheists, though most avoided saying so openly.
Before I respond, I would like to warn you first. After I post this response, you will more than likely see some retaliation come up against me and what I will say here. You will more than likely see accusations similar to "The Indians fought and had wars against each other for hunting grounds!" And/or "Some Indians owned African slaves or enslaved other Indians!" There is a very good chance you will see these attempts of justification, and perhaps even other attempts, for all the atrocities that happened against my ancestors, the American Indians, in this country. And you will more than likely see accusations against me personally, such as but not limited to: (1) "Stop playing the victim!" (2) "Stop using the race card!" or "You are race baiting!" (3) "Get over it and stop living in the past!" and (4) "You are spreading hate and white guilt!" All of these accusations and attempts of justifying what happened to my ancestors are common in discussions like this one and can be expected. Many times, these accusations and attempts of justification come like clockwork. So, with these accusations said and out of the way, I will continue with what I wanted to say in response to some of your original post.
If I may respectfully offer different perspective, one of an American Indian. Yes, America was born in sin. It is a nation that resides on stolen tribal lands that its own government cheated, lied and murdered for. The only biblical aspects that can be honestly attributed to America is the insurmountable amount of genocide of Native Americans and the enslavement of African slaves that took place during the continuous theft of tribal lands through hundreds of broken treaties, forced removals, death marches, cultural genocide, and the attempted annihilation of the American Indian. This nation was not originally founded on freedom, liberty or justice other than for the White Anglo-Saxon Protestant male. America was born in genocide and slavery, founded on racism, oppression, and discrimination of minorities, particularly Native Americans and African slaves. White supremacy and white privilege were the driving force behind it all. The arrival of the white man has been compared to a horde of locust, devouring and destroying everything in his path. A horde of locust lay to waste everything in its path and that is what happened when the European settlers came to this land.
Martin Luther King, Jr. also talked about what happened to the American Indian.
"Our nation was born in genocide when it embraced the doctrine that the original American, the Indian, was an inferior race. Even before there were large numbers of Negroes on our shores, the scar of racial hatred had already disfigured colonial society. From the sixteenth century forward, blood flowed in battles of racial supremacy. We are perhaps the only nation which tried as a matter of national policy to wipe out its Indigenous population. Moreover, we elevated that tragic experience into a noble crusade. Indeed, even today we have not permitted ourselves to reject or feel remorse for this shameful episode. Our literature, our films, our drama, our folklore all exalt it."
America was conceived in sin and it has given birth to a monster. That is the justice of God calling us to repentance.
God did not punish America for the millions of native men, women and children who were brutally murdered for the land they lived on. God did not punish America for the theft of all the tribal lands its government stole through hundreds of broken treaties it had made with the Indian nations or for all the forced removals and the death marches that cost countless native men, women and children their lives. God did not punish America for placing native children into Indian Residential Schools in an attempt to strip these children of anything and everything that had to do with being Indian and forcibly Christianizing them. God did not punish America for the centuries of slavery when owning another human being as personal property was legal or for the brutal beatings, lynching and murders of countless African Americans because their race was seen as inferior to white people. But now, God is suddenly going to punish America with Donald Trump or for the sins committed in this country today? If I may say so, I say God is a bit late.