Lack of FDA approval was just a convenience. I see many asking for links and other info on FDA shortcuts and other talking points to justify still not wanting the jab.
It was never about FDA approval (or lack thereof). It was always about a >98% survival rate - for a cough.
The argument is 1) you have an immune system, 2) you believe in natural immunity, 3) the substantial list of documented side-effects doesn't outweigh a 2% chance of dying from covid.
2% is a generous mortality rate, much lower for under 65, and onder 35 it is almost non existent.