I think a lot of it stated from the term anti vax it’s pretty stupid to call someone anti vax in a derogatory way because they don’t want one vaccination, it’s like calling someone who doesn’t want the flu vaccine anti vaccine. This began the divined imo and those ppl kicked back. Having said that I do see some people against that take it too far and too aggressively. More have vaccines than not even from a selfish perspective we need vaccinated people to support no passports too. So it’s counterproductive.