As the poster you were responding to correctly pointed out, here are the following irrefutable facts regarding the middle east:
Al Qida attacked the USA repeatedly. In 2000 the attacked our Navy. In 2001 they attacked us on our soil. They threatened to wage holy war against us. All of our intelligence entities consensually agreed that Al Qida was an "Existential Threat to this country".
Now, to knuckle draggers like you, and existential threat is one that has the ability and the intent to end our existence.
Bush sent 325 soldiers to fight Al Qida as a result.
Iraq had been so badly decimated by the various sanctions, the attacks on their targets that our military and intelligence entities were unanimously concerned that the SAddam regime would fall to pieces leaving a power vacuum in the middle east.
Bush sent several hundred thousand USA troops after this crumbling regime.
Why the difference?
Bush told us the answer himself. Fighting terrorism would be hard hard hard. Knocking off Saddam would be a picnic. After all, the only thing that Bush was concerned with was keeping the neocons in power.
"Because Pakistan is an ally"
They ARE? How does that saying go? With friends like them, who needs enemies.