So you are saying that all the professors, field experts, scientists, politicians, doctors (and a long etc.) in the video are actually lying about it? It's possible sure, but for what reason would they do that? I mean they gain nothing and put their own professional reputation on the line. These are people from all over the world......are they all lying or making it up for fun? Are the results they publish also made up? As I asked before, if that's the case then what is their agenda?
As for it being a conspiracy theory. Well sure I guess it's a theory but only as long as you don't read the lab results and solid scientific proof that something is wrong with the air and water samples. After that, if you still think it is theory then of course that's your prerogative. I'm sure the South Park producers have a much more solid scientific reason for all those results.