Sure.
For myself, it boils down to this:
It was GW that actually issued the order to send in US troops.
He was the commander, he made the final decision. He is accountable.
I didn't say he lied, I didn't say he misled anyone.
However, many of us here were in the military. If someone screws up a decision, that someone is taken to task.
He made the decision to spend American lives to get those WMD. 850+ have died and no sign of any WMD.
It's possilbe the WMD were in Iraq and were moved to Syria, so two things:
1. With the world's best military, he failed to stop the WMD from getting out of Iraq. IE: shoulda hit them ASAP.
2. If the WMD ARE in Syria, aren't they just as large, if not a larger threat, than they were in Iraq? Cripes, the Syrians are swapping spit with all the major Palestinian terrorist groups. So, if we knew they were in Syria, why didn't we turn left and go get them when we had the troops/equipment there? Are they suddenly not a threat in Syria?
I can't let this go, sorry. His decision led directly to the deaths of 850 of our finest. HIS decision.
That's why I'm not voting for him. That's what I see as "detrimental to my country".
I'm guessing though you'll get a lot of answers that basically boil down to "there's nothing worth dying for". I don't hold with that opinion; I think John Stuart Mill had it right about those guys.