Telling that the millions of people that have used the Covid vaccines without issue never come into that conversation.

Instead those supposedly literate people pull out percentages so blatantly incorrect that any attempt to convince them turns into evidence for the validity of "Never argue with stupid people, they will drag you down to their level and then beat you with experience".

You see this all the time on social media, with the most recent version being rabid antivaxxers pretending that 80% of to be mothers that got the vaccine had miscarriages.