How is this a rebuttal? A single site exists and this is evidence? The antivax movement started on the left. The right very much didn’t want the COVID vax specifically. Pointing out once site that disagrees is too easy.
It's one example. Nobody given any evidence that anti-vax had been a mostly left-wing thing before covid, so there's nothing for me to rebut.
Other examples abound if you just look a little bit. Infowars has been running anti-MMR content for years. And for decades, polls have shown that anti-vax views are independent of the political spectrum.
