To be fair, same can be said of pro vax people. Blind belief into what science have become is perhaps more dangerous than blind disbelief.
It amounts to noticing that few if any of the people you know or are acquainted with through two or three removals from personal contact, have suffered or died as a result of using said technology, and basing your own confidence solely on this privileged form of hearsay.
It sounds like something that should not work, but actually does a pretty good job as a high-pass filter for safety.