What we found out is that there is a full blown insurrection happening. We’ve had a president impeached while being innocent. We’ve seen the House of Representatives participate in the framing of the President. That’s not stable.
I think you are confusing politics with stability. In the case of impeachment, the system worked perfectly. A partisan house along with others outside of the house went for impeachment and it stopped in its tracks by the Senate. If the government was unstable, other crap would be happening including assassinations etc.