Fine. Oppose the death penalty all you want.  I am not saying one must support the death penalty. 

What I am saying is that support of the death penalty is not incompatible with the Catholic Faith or the pro-life position. The position I am defending is that one can support the death penalty and still be pro-life and a Catholic in good standing. 

I am also defending the position that the pope does not have the authority to change church teaching at will. The pope cannot just take a moral issue that does not involve an intrinsic moral evil--and arbitrarily claim it now involves an intrinsic moral evil--simply because the pope's personal opinion is that it should be an intrinsic moral evil.  The pope is the pope, not a Supreme Court Justice.