It’s weird that they cling to him since there are actual conservatives, politicians and otherwise who are anti-vax. Personally, I’d pass him by despite his stance on vaccines, since he’s left-wing on other issues.
But when they began their anti-vax stance, RFK really was one of the few on their side.
Of course, when Covid years is head, “actual conservatives and politicians” came out of the woodwork. It wasn’t a “big deal before that.