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It's a common antivax meme to round 95% down to 0%. But even if it didn't reduce infection, the real selling point for me is that they reduce the severity of infection. I have had covid, I will probably get covid again. Reducing the amount of brain damage from all sources is pretty high on my priority list.

That's from October '21. Vaccines were new back then. They worked well initially, but over time the protection vanishes.

Have you looked at anything more recent than October of 2021? You might find that your understanding is a little out of date.