But two points:
* Being a neurosurgeon, even a highly educated and titled one, does not make someone an expert on immunology. If he was an expert on immunology, he would be an immunologist. This is exactly the reason why there are stringent rules about diagnoses and evaluations in hospitals: doctors are no less susceptible to expert confusion than the rest of us.
* mRNA vaccines are a new technology. But they're not that new: research into mRNA transport and delivery began in the late 1970s[1]. By the 1990s, they were recognized as the frontier of vaccine development, and were primarily stymied by an absence of funding. Vaccinology's history spans 300 years, the majority of which involved stabbing people with unknown quantities of pathogens without any real understanding of what we were doing. mRNA represents a significant and positive increase in the use of our modern understanding of immune systems to develop medicine. That doesn't make them safe, but they do represent the safest approach (in terms of healthcare outcomes) we've had to vaccinology in its history.
Yes, pharmaceutical companies are bad. They're so bad that it's a trite and tired observation to base conspiracy theories on. Nothing written therein changes the fact that the shot is free for you and produces improved healthcare outcomes. The US government already spends hundreds of billions of dollars keeping people alive after decades of damaging their bodies; paying a few billion more for some vaccines is hardly worth a global conspiracy.