Ok,valid points except your forgetting one big thing......WE NEVER SEE OR HEAR ABOUT HIS TRUE ORIGIN. We dont know what made him the way he was. Certainly the scarring wasnt what set him off. But we dont know for sure
Exactly! That's been my point the whole time. No matter what really happened, the comic Joker was
set off from the point of his chemical bath, before that, we don't know who he was, but it doesn't seem like he was a criminal. TDK Joker is robbing by the end of Batman Begins, and leaving the card. He was who he was within
weeks of Batman showing up. That's a pretty quick turnaround for someone who was "normal" beforehand. We don't know what set him off because its a strong possibility that nothing did in the first place. Because maybe he's just crazy, period. People act as if unreasonable acts of crime aren't what make the Joker who he is. If you take away the one miniscule sympathetic aspect of his character, doesn't that make him even more of a nutjob in your eyes?
I mean TDK version has a couple scars and thats it. If that's enough to turn him into the Joker, he was unhinged in the first place, for quite a while, which to me, makes him a more vile character, because he has really no basis for it. He might've had those scars most of his life, if it was that catastrophic of an event, he should've been robbing and killing since grade school. Instead, he waits for Batman to appear, and starts a reign of terror without provocation. No one knows him or recognizes him, and he's on TV quite a few times, so its safe to say this didn't just take place recently or that he's even from Gotham. This Joker is the kind of evil that Ted Bundy and Jeffrey Dahmer personified. Cold, ruthless, and without reason. If that makes him like a "regular everyday serial killer" then I dare anyone to go hang out with some, since they must be so wimpy in comparison to a permawhite Joker.
The comic Joker, although reprehensible, has a pretty good reason to be insane. His life as a normal person was destroyed, you won't live a normal life at all if you were stuck as a permanent clown, unless your part of the circus. TDK Joker isn't stuck whatsoever, and to me, if you slap makeup on your face and kill hundreds of people willingly, just to do it, something's deeply wrong with you, and chemical baths and facial scars ain't the reason