It's amazing the stories that Americans tell themselves about the American Revolution. They pretend that the "founding fathers" were heroic idealists standing up for honorable values against an evil despotic regime. The truth is much more complicated.

A major goal of the 7 Years War was about controlling the colonies in the Americas. Had the French won those wars, the modern people of North America would probably speak French. Look at how many US places still have French names, and especially are named after the French king: Louisiana, Louisville, St. Louis, Mobile, New Orleans, Baton Rouge, Detroit, Lafayette, Arkansas, Illinois, Calumet, Decatur, Boise, Montpelier, etc. But, the French lost the war, so the English took over all that territory. Fighting that war was incredibly expensive, but it was worth it for the English because they now controlled a whole new continent with all its resources. To pay for that war, they levied taxes. The English colonists in the US, who were largely the beneficiaries of that part of the war, decided they didn't want to pay those taxes, so they rebelled. They got the benefit of a continent won for them by English armies, but without having to pay the bill for that fight. Now, again, it's complicated. The English armies were integrated with the colonial armies. George Washington was initially an officer in the British army (and was part of starting the French and Indian wars, which became the 7-years-war). The US colonists were part of the force that fought against the French and their native allies.

Anyhow, it was complicated. But, the end result was that after a war that took place both in Europe and in the Americas, the British crown had a huge debt. I have no idea what proportion of that debt was due to the part of the war fought in Europe vs. the part of the war fought in the Americas, but overall there was a big debt and the English crown tried to tax whoever they could to pay for it.

Was the English king a tyrant? Sure. Did the Americans have fair representation in the English parliament? Probably not. But, their main reason for rebelling was the same one that is nearly always the cause of rebellions: the rebels are in an area that's wealthy for some reason, and they don't want to have to share that wealth with the rest of the country / empire. In fact, it was suspected that the colonists chose not to send representatives to the colonial assembly partially because they knew that if they did that it would undermine their "without representation" argument, and the real issue was that they simply didn't want to pay taxes.

As for the English system being tyrannical, the reality is that it has been a very slow, gradual change from an absolute monarchy to a ceremonial one. The English crown is significantly less wealthy than Elon Musk, and arguably has a lot less influence on British politics than Musk does on American politics.

By the letter of the laws, the British system is still more classist and controlled by money than the American system. But, is that true if you look at the actual real way that power is used? It doesn't seem like it to me.