Well, you may want to crack open a history book or newspaper someday. Saddam's first job was as an assassin. He has gassed 40 villages of his own people out of existence. He has invaded two neighboring countries. He lobbed Scud missles at Israel during the Gulf War, even though Israel was explicitly forbidden from joining the coalition and was a non-combatant. Iraqi refugees detail how he and his family delight in being privately entertained by the torture of Iraqi citizens. He is eager to develop weapons more powerful than CS-gas so that he can kill even more people. He IS evil, by any definiton of the word.
Of course, simply SAYING he's evil is meaningless, as you point out. However, his own actions are what we are really responding to. In case you've been too busy apologizing for him to notice, let me tell you that his troops shoot at allied planes daily (as his own press releases state), that he sends money to the families of suicide-bombers, that he organizes large-scale "death to America" marches, that he has been violating 16 UN resolutions for a decade, he has been violating the terms of the 1991 cease-fire for over a decade, that he would be happy to use WMD's if/when he develops them (since he uses the most powerful general destruction weapons he has already against his peope and his neighbors), and that Iraq is close to developing those weapons (his administration has already announced they haev the technology and the plans to build a nuke, now they just have to construct and test it... that's one year, tops). Anyone else in the world who behaves in a similar manner should be removed from office, as well.
If the above facts aren't enough for you to see that the people of Iraq, Kuwait, Iran, Israel, America, and the world all need him removed, then you're probably too busy buying Husseini kneepads to bother with.
Sure let's remove him, but let's not pretend it's about his potential to use a WMDtm. North Korea seems to be a far bigger threat as they actually have WMDtms, but we're choosing to go the diplomatic route there. Yeah, the U.S. is not likely to pick a fight with someone who actually has nukes which is how we can be sure Iraq does not have them.
Given the fact we have been aleady lied to about alledged Iraqi aggression (the baby/incubator thing), I have trouble believing the remainder, eg. gassing Kurds, etc.
Hussein may be a whole bunch of things, but let's get a reality check on the real U.S. motives for wanting him out - oil and/or geo-strategical interests.