It's not that Hussein was a threat to win a war against an American army, but rather that Hussein was in a position to finance the development of weapons that could be given to terrorists and used on civilian targets that made him a problem.
Certainly his $20,000 payments to the families of each "martyr" Palestinian suicide bomber in Israel was destabilizing the region, and at least one terrorist organization was operating in Iraq's northern mountains, which is not the sort of base for terror that we need to allow to go unchecked.
Not that you care about any of that. You are a Libertarian activist. It's your **job** to bash whatever Parties are actually in power, by taking whatever angle is convenient at the time to so do. You can merely criticize, not praise...and tear down, not build up.