I would not say so, quantum physics and Relativity are both physical theories with strong experimental proof in their own domains, very small scales and very big scales. They are both extremely higher on the scale of trustworthy believes than any religion could be. I think most physicists believe quantum physics has solider proof than Relativity thanks to the enormous statistics from experiments that we can control like the LHC. For (General) Relativity, we kind of have to do with what the universe sends us.
They are both systems of beliefs, like religions are, but with a much higher level of proof, so physicists have some skeptical faith in both of those theories.