Hey, I said "much", I didn't say all. You're right, there are plenty of the aforementioned quacks, cultists, etc., etc., on this forum and elsewhere.
My point remains that the problem with global warming theory is that it is essentially wild speculation and shoddy analysis of scant data.
I recommend perusing the RealClimate Web site, for starters, and maybe you'll realize that your opinion is a bit extreme.