It is true that Rev. Rankin is a Protestant pastor. I believe that, if we ignore this minor difference between the Roman Catholic Church and the Protestant denominations the rest of what he says is something that we can all support.
If you agree, then perhaps we can avoid sniping at one another for a while and seek the Unity that our Lord and Savior prayed we would seek.
Shalom.
Having said that, I commend him and anyone else for furthering the dialogue and trying to bring about a greater understanding and tolerance of Islam.