> This is why the idea of labeling anyone who's not 100% on board with 100% of vaccines, 100% of the time, as "anti-vaxxers,"
Nobody is doing this, including GoFundMe. In fact there is quite a lot of active research into vaccines, both how to make them more effective and how to make them more safe. No one calls those people "anti-vaxxers." No one is piling into this thread to call tntn an "anti-vaxxer." Informed, rigorous consideration and investigation of vaccines is well-accepted by society and always will be.
What gets labeled as anti-vaxxer is the uninformed, or deliberately misinformed, content that is created to attract attention, for the purposes of monetizing said attention. Crowdfunding platforms like GoFundMe, Patreon, etc. are some of the ways people make that business work.
Snake-oil salesman is an old scam: you create or feed public fear, then you sell a (fake) solution to that fear. Anti-vaxxers have adapted an advocacy model to this pursuit--they use vaccines to feed paranoia about society, then they ask for money to "continue the fight" or whatever. The entire operation is done in bad faith: a scam.