We had reports of people who wanted to take weird-ass drugs-of-the-day just to refuse getting vaccinated. And screaming "conspiracy" when their efficacy was not confirmed to be as high as they expected. Good that we have something that actually works, bad that some assholes will use it as an excuse not to get vaxxed, completely missing the point (among others, trying to prevent something worse than Delta).
Which just proves, the anti-vaxxer moment is based on the primitive instinct of ”pain and needles=bad”
Being scared of vaccines should be considered the same thing as having a fear of dentists. Or pets hating going to the vet.