Unfounded and dangerous claims by anti-vaccine activists include: vaccines contain toxic amounts of mercury (disproven), vaccines are untested and unregulated (false), and vaccines are somehow associated with autism (100% fantasy).
Both fat-shaming internet trolls and those who shame them for their intolerance are falling for the same unhealthy message that body types are objects to be evaluated. If our culture embraced body neutrality, both behaviors would become irrelevant.
As Margaret Atwood said, "'The Handmaid's Tale' has actually become a meme in US politics. You'll find it turning up on Twitter. Somebody has to tell the Republicans 'The Handmaid's Tale' is not a blueprint."