The vaccine is not the virus. If you take a stochastical approach to understanding immunity, that raises questions whether one can be substituted for the other in the long term. Derek Lowe has a good elementary introduction in the subject.

"It's important to realize, though, that all immune responses to a viral infection generate a mixture of neutralizing and non-neutralizing antibodies. That's one of the things about the immune system - it revs up production of a wide variety of antibodies, selected from the untold billions of them circulating around in your bloodstream. Some of them bind to one part of the pathogen, and some to another. And they bind in different conformations, sticking to different parts of the surface of the invading virus from different directions."

https://www.science.org/content/blog-post/antibody-dependent...

I think it's not surprising some people are going insane because they don't trust the institutions (justifiably so, after showing double standards and corruption in some cases) and those institution's response is to punish, shame, ostracize the people who question them, and to do so with help of large corporations, namely big tech.

I don't get why anyone who doesn't belong in a risk group is afraid of the virus? I'd rather obtain natural immunity for a flu-like virus instead of resorting to vaccines that use a new technology and aren't long-term tested.

Because the virus is dangerous for the risk groups, and one of the risk groups is "people in an area where the hospitals are currently overloaded". If you're confident that you're not in another risk group and that you'll catch it at a time when few other people are infected, then you've little to worry about.

A digression.

It seems at least plausible that more person-months have now been lived by people who've been vaccinated using Biontech/Pfizer and AZ vaccines than by people who've recovered from the disease. If so, then one might say that the riskier option viewed purely in terms of long-term experience is natural immunity.

Billions(Trillions? Quadrillions?) more person months have been spent training our genetics against coronaviruses in general.

And indeed coronaviruses don't have long-term effects in general. But you know this one is special in the short term, so how do you whether it is or isn't in the long term?

https://www.theguardian.com/world/2021/dec/01/severe-covid-i... was posted here yesterday.

They think the vaccine is some manner of poison, either accidentally or intentional.

In theory, original antigenic sin can prevent your body's immune system from responding to mutated strains. Not so much a poison, more like a poison pill to your bodies machine learning algorithm.