Why would there be?
Isn't one of the core tenants of conservatism the idea of individuals having the freedom to make their own decisions?
Most republicans are taking the position of "if you want to get the jabs that's your decision. If you don't want them then that's your decision too."
Many of them are questioning the effectiveness. Some have decided against getting it. Nearly all are strongly opposed to the mandates. But why would any candidate for a nationwide office take the position that the shots are poison and no one should take them? Billions of people around the world already have with no immediate negative effects.
Being completely against the jabs for anyone is pretty darn far outside the mainstream and probably wouldn't generate much support. Similar to a candidate that was advocating for a return to prohibition.
"Live and let live" is a much more attractive position for someone running for president.
