I am afraid you are 100% correct. Who knows when it will be, but my suspicion is sooner rather than later.
A little Roman history is worth re-learning. The Romans, probably the greatest empire of the ages, started out in about 750 BC and had an amazing run until about 180 AD. That was an incredible 400-year run and then it all began to unravel with the Emperor Commodus. From there, it was a downward spiral with one dud after another as Emperor. And then Rome was no more within about 200 years.
So since the 90s, we've had our own share of "duds." Clinton, Bush, Obama, and now Biden. So, for well over 30 years, we've been managed by losers, liars or outright lunatics. I'm tempted to put Trump in the mix because of his brash, in-your-face ego personality. To me, he was not a leader but more of a buzz-saw or human hand grenade.
Things move a lot faster today, you know.
No-one knows the future, but this Regime is propped up by having the $US as the international currency.
That allowed them to run huge deficits for decades at low interest rates and low inflation.
It also allows unlimited money printing without ruinous inflation or devaluation.
If the $US as the international currency comes to an end, the USA (and the West generally) will be a formerly-industrialized economy with gigantic trade and budget deficits, unable to even finance imports.
When the DC Regime has no money, it will have no way to pay the Deep State and will just collapse - just like the USSR did.