I don't think the washtowel is anti-vaccine, and not even anti-coronavirus vaccine. Not when they just about make it mandatory in order to attend in-person boasting sessions (along with the masks) at a time when coronavirus is all but gone. You don't get this torture shot, you are deemed at best "bad associations within the congregation", and they could make it "brazen conduct" if you don't get your torture shots and all boosters as soon as you are eligible. Even without putting out a directive making it mandatory.
And what about being anti-supplement? Where in the washtowel littera-trash or in their discourses does it recommend people start taking vitamins? People with dark skin need vitamin D at all times if they live outside the tropics. Lighter skin people living in northern latitudes (or far southern ones, in cases like South America) need it during fall and winter months. Vitamin C, zinc, quercetin, and elderberry extract all work wonders to make a potentially dangerous virus into a wimpy one that does nothing. Fact is, you are more likely to be hounded, or even taken for "brazen conduct", if you take the Amazon "shot" or some variant of that (which contains quercetin) than if you refuse such supplements.