I mean, for me, the "it's not FDA approved" concept is a bit of a farce. Like I personally think most of the people who think that way are just lying to themselves about the reason they won't get it. I have several "side bets" if you will with some close, conservative friends, that when the time comes for FDA approval, we will NOT see a major spike in vaccinations in this Country, which is an indication that people aren't really worried about that.
At this point, it seems all but a formality that the FDA will approve these vaccines, and quite frankly, this is pretty much one of the bigger clinical trials and data sets in US drug approval history. It's not like we're actively waiting on "more trials" or "the sample size isn't big enough".