> B) Noted some unvaccinated friends had no symptoms, so it's not like Covid vaccine has a provable lessen the symptoms effect.

What. This isn't how reasoning works. "My friend wasn't wearing a seatbelt when they got in a car accident and they didn't die but this other person was wearing a seatbelt and did die, so it's not like seatbelts have a provable positive impact on collision safety."