No industry is a monolith, and yet there's not a single whistleblower that's come forward? There's not a single hedge fund that's dropped a Hindenburg style expose as it short sells a pharma company's stock?
This is a really interesting question. There is the issue that Pfizer is too big to fail and there is no situation where countries that bet their democratic legitimacy on Pfizer products are going to prosecute them, so there isn't a short case you can publish and reasonably time. The thing about betting on conspiracy theories is that the theories only exist because they're getting away with it. They say you should buy the rumor and sell the news, but the smarter play may be to buy the conspiracy theory - and then just hold indefinitely.
What makes that a not-analogous example is that there is an active campaign to destroy oil companies, most likely as a means to nationalize them as there is no situation in the next 100 years where oil goes away, and also that this is California where nothing is real.