Gatomon, I can't debate you because I don't even understand what the hell you're saying.
I'm going to try to puzzle it out, though, and I think you're mixing definitions. Pseudoscience is anti-scientific, because it sets out with a conclusion, say, proving the Grand Canyon was formed by the flood, and then tries to find evidence to support that assumption. Science moves the other way, from observation to conclusion.
Anti-Intellectualism is just the mistrust of smart people and the things smart people do, like, you know, reading a book. Since a lot of pseudoscientists think they are smart and think they are doing smart things I don't think that fits.
Like GregX said, we live in an society that tends to embrace anti-intellectualism, but I think its way more likely to come from religion, especially fundamentalist religion, politicians who want to appear to have populist leaning, right wing tv and radio personalities and a belief that intellectuals are elitists, as well as the "cult of self-esteem" that another poster mentioned.
All the other things you listed, well, they just seem to be things you disagree with. Being a wrong idea doesn't make it anti-intellectual. To be anti-intellectual it has to fit the definition of being against intellectualism or casting it in a negative light, which none of those things really do.
For examples of some of the stuff you mentioned being portrayed as fantasy, well, Invader Zim isn't real, I guess, none of the monsters on Courage are real, Fairly Oddparents doesn't try to convince anyone fairies are real. All of those fantastic elements are just grist for fantasy adventure stories, where they belong. The cartoon doesn't try to lead people to believe that, hey kids, in the real world this could exist.
GregX somehow managed to pull the one example I wouldn't have used, because when it mattered in JLU the Question was right, there really was a secret government conspiracy. In the context of the cartoon, then, the other things he said sound crazy but weren't exactly debunked and in fact may also be true.
Finally, what's good for the goose is good for the gander. Give me some examples where cartoons specifically, seriously promote some of the things you're on about. The closest I can think of is a Tiny Toons that tried to cram vegitarianism down kids throats.