Pitiful! You think just because a leader of another religion walks into a Christian church that it somehow nulifies the church. What you're saying is that it nulifies the power of GOD.
Balderdash!! How ignorant. Jesus said, "here is my church .. those who love me and follow me".
You might be surprised to learn that satan shows up in a lot of churches every Sunday. That still does not negate or dimish the power of GOD.
You are absolutely correct. He also dons a "sheep" costume... and is suspected of controlling more than a few pulpits. None of that diminishes God. We are warned over and over of this in The Word. Wheat and tares, wolves and sheep... leading even the 'elect' away...
You can attend or watch church services that "Satan shows up in", I choose not to.