It feels to me that the virology and vaccination field is mind-numbingly complicated, so most so called hacker objections are from people not even remotely qualified to object, since they only think they understand. Study the field for a decade, then object. Those are the objections we should pay attention to.
Just spend 25 hours watching videos so we have a common language about how viruses and the immune system works. Doesn't need to take a decade to bump up a person's knowledge above the level of online blogs.
The human immune system is the most complicated biological system we've made any significant progress in understanding. But I would be prepared to listen to a contrarian who's spent several months deep diving the literature. Sadly, I've yet to meet such an individual.