All true if one's premise is that what was done was wrong.
Well, so far evidence and analysis by damned near everyone as shown that what was done was wrong in Iraq. From F'ed up planning, execution, failure to have a contingency, failure to understand the people and their reactions, failure to understand their civil war.
Then of course there is failure to understand what happens when you form a power vacuum, or allow tribes who have warred for centuries to have unfettered access to weapons and money and outside support without internal control.
Or understand how a power vacuum and lack of internal army and intelligence could allow foreign terrorists to set up camp in that vacuum.
Not to mention blowing up 500K or so civilians in an effort to either 1) get WMDs or 2) get Saddam, or 3) make Iraq a Democracy in the sand or 4) make a beachhead in TWAT [The War Against Terror].
Yeah, it's pretty much a foregone conclusion that "what was done was wrong".
But hey, it has only cost $1.5Trillion, 4000 or so lives, 50,000 wounded, near dismantling of readiness of the military, damaged foreign policy and helped push our National Debt to near $10Trillion.