If you wanted it an octave up, that's... a bit out of my range, sorry. I think you'd need a guy hitting high As and Bs from the sound of it. If you wanted a woman I think you'd even want to go with more of a mezzo than a straight up alto.
I know you didn't really ask for a critique so take this one for free!!! It's also *really* long and, um, sounds like less of a send up and more just, you know, angry. I think it's long because you're kind of trying to cover every skeptic issue under the sun. I would also add an actual bridge (i.e. something with different changes) and not just an instrumental break and overall make it look something like this:
(2 4 stanza verses, ideally about one specific thing, not 3 different things at once... detox, perhaps?)
(4 stanza verse about one specific thing, chiropractic for example)
(bridge - total change tonally... more on this later maybe)
(guitar solo if you want one)
(opt. 4 stanza verse, again about one thing - GMOs and Oprah?)
I think that would probably cut what you're doing at least in half. 8 minute songs have kind of got to be *epic* to keep the audience into them. Think "Stairway to Heaven" or "American Pie" or "Freebird" for the level you need to sustain a song for that long; even something like "Bohemian Rhapsody" keeps you interested by changing styles every minute or so (hence the name).
So... thematically I think that this can have basically the same issue that really, really political songs have, which is that they get too heavy handed. I think signalling it as a send-up is a good idea but as noted... it's not really a send-up at this point. So that brings me to another suggestion... this song has a very 80s feel to it, maybe a bit Depeche Mode in there but maybe even older influences than that, like... "Don't You Want Me" by the Human League for example, or early Duran Duran. When *I* think of this kind of music, I think of simple, new-wave music but often with that tinge of regret or sadness. *My* opinion is that if you want to keep the kind of mad, angsty lyrics but you want to be funny, you should go with something way against type... like burlesque, for instance, or like a 1950s era Broadway musical or 60s surf music or even (if you can pull it off) ragtime. It'd be funny because the audience is expecting happy go lucky lyrics and instead you're hitting them with "Oprah sucks!".
Then in your bridge you could bring the audience back a little bit with something like "hey, I get why you need to feel happy or whatever, and I wish this stuff were true myself, but it kind of isn't so pls stop" or whatever (the general point being, the bridge is where you get to
A couple of examples of the style-busting thing...
A Weird Al classic, "Christmas At Ground Zero". The lyrics are dark as *crap* but it's funny because it's a damn Christmas carol...
Or take the opening song to "Little Shop of Horrors". It sets the stage for this musical *perfectly* but at its core it's a 60s doo wop song about B-movie horror.
If you want to stick with the style, what I think I'd do here is go for satire. Use the new wave style to evoke that image of that aerobics class-attending, Cambridge Diet trying, Jim Fixx book-reading younger brother/sister of the hippie generation that would actually *totally* embrace stuff like anti-GMOism or chiropractic. There you'd use your bridge to say what you *actually* think about the subjects (don't worry; your audience will get the eye-rolling in the verses if you play it right anyway).
A couple examples of *this*:
"I'm Hip" by Dave Frischberg. It's 1950s style jazz instead of 80s pop but you can hear how the singer manages to skewer the "woo" of his time without actually saying that they're stupid (and in fact, the made-up character that's singing it seems kind of sympathetic, if airheady):
Another Weird Al song, "This Is The Life". The 1930s jazz style really fits well with the "I am the greatest person ever" bit, right? And again, the character in the song clearly believes what he's talking about but we in the audience will still laugh at lines like "so if money can't buy happiness I guess I'll have to rent it" or "you can tell I'm a living legend, not some ordinary creep".
Or... finally, my new favorite song ever, "Hasa Diga Eeebowai", which is *completely* "Hakuna Matata" from The Lion King, only... well, wait for the reveal. It's also a little bit against type (although I would argue that the subject matter is *exactly* the same as what they discuss in Lion King, just, um, more realistic).
If you're still around... I kind of want to take a pass at the lyrics now. Would that be cool?