Here’s my opinion.
This kind of mRNA(modified RNA) ‘vaccine’ has never been approved by the bureaucraps at the FDA for human use before. The tests for safety, effectiveness, side effects, especially long term side effect, haven’t been done simply because of the speed with which the vaccines have been produced and introduced for use on the populace.
And there have been multiple reports, world wide, of some serious adverse reactions to the vaccine that make it even more necessary to have these studies done.

Also, you can’t sue Pfizer or Moderna if you have severe Covid vaccine side effects. The government likely won’t compensate you for damages either

Messing with how human genetics operate is something I have serious misgivings about. We can joke about end of the civilization movies, government experiments run amok with zombies and mutants but when you look at how injecting engineered RNA into cells to make the cells produce something they were never designed to produce, what can I say?

‘As for me and my house’, we’re going t0 forego taking this until a lot more data is available.