When I asked my vet about the efficacy of Lyme disease vaccine (which I'd read was mostly pointless, more risky, and not-long-lasting) I felt like a total anti-vaxxer.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2870557/

He wasn't the greatest vet, but I don't think he'd ever even considered the possibility that a vaccine wasn't simply the best (only) option.

Not an anti-vaxxer, but with the world of knowledge at our fingertips, we shouldn't necessarily hate people for wanting to "do their own research", despite how poorly they do it.