I am sorry, but that was part of it. Saddam tried to kill his father and GWB was pissed about that.
I was at the Naval Space Command during the first Gulf War, so I saw that one too. In the first Gulf War, Saddam was left in power for exactly the reason Trump is saying. After the news of the Highway of Death got out, Iraqi solders were surrendering to unarmed drones! We could have rolled into Baghdad faster than we did in Desert Storm. But the adults prevailed so we didn’t create a power vacuum that time.
I would expect any president to be pissed than any former president had been targeted for assassination. I would expect retaliation even if the target were Clinton or 0bama.
I would not expect it to be a war for anyone but I listed a lot more than that didn't I? The rest of your post is irrelevant to my point.
And Middle East was calm. Now genie is out of the box. Currently, US is financially very weak. US never recovered after 9/11. I am really worried about my future.