I wouldn't call 9/11 "limited". Nor is Yemen, or, earlier, Syria, Iraq, Lebanon, Iran etc.
The fundamental of all of these is oil and now, gas. Removing the demand for these will remove the necessity of engaging with these propped up monarchies and autocracies.
Relative to what's going on in Ukraine, it is. 9/11 was a massive terrorist attack. Next to the scale of state-on-state warfare (a category it does not belong in), it was a rounding error.
Agree that de-carbonising our economy will remove our need to support these regimes.
