I'm pretty much done arguing about Iraq. Should we have deposed Saddam Hussein? Is the world a better place now than it was at the beginning of 2003? Is the world a safer place now than it was at the beginning of 2003? Was the Battle for Iraq a valuable component of the War on Terror? The facts are quite evident, and the answer to all these question is "yes".
There are still plenty of people who disagree, but I'm convinced there's no further use arguing with them. If they had open minds and were willing to look at the evidence -- free from their prejudices -- they would already have done so. You don't argue with someone over whether or not the sky is blue, you just point up at the sky.
Do not speak to a fool, for he will scorn the wisdom of your words.
Though you grind a fool in a mortar, grinding him like grain with a pestle, you will not remove his folly from him.