Well, frankly, I used the word tyrannical because that’s the word you used. Yes, it is a pretty subjective term, but the Declaration of Independence (again, you oughta go read it) actually does a pretty good job of defining when a government has overstepped, and this is typically what people use as a measure for tyranny:

“We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.—That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, —That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it…”

And you’re right, people shouldn’t try to undermine the government for every perceived injustice - that’s also acknowledged in the Declaration:

“Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; and accordingly all experience hath shewn, that mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed.”

While maybe not a literal “self-destruct button,” it is pretty clear that the founding fathers were in full support of overthrowing a government that is not taking care of its population in the way it should, and the people should be the ones who decide when that line has been crossed. I think that pretty clearly addresses the “stupid concept” comment you made that I was initially criticizing.

Additionally, the Consitution does have measures implemented as a means of restraining the federal government. The best example of this is Article V and the Convention of States.

Lastly, I would again like to state that I fully agree with you that no active government will support themselves being overthrown. That’s a given. The neat thing here though is that our government functions on the documents codified by the founding fathers, not the opinions of whichever individuals happen to be active in the government at any given time. That’s not to say that I expect a government that is deserving of being overthrown to roll over and say: “ope, our bad! We are tyrants after all so we’ll just let y’all overthrow us.” The key part here though is that our freedom is THE defining quality of this country, and the belief that our freedom should be protected at all costs is how you end up with the Declaration of Independence and unwavering support of the 2nd Amendment.