If it's only a very small fraction of Muslims that hate and want to destroy America and the rest love us and want to be just like us, then why an envoy?And this proves what? Do 19 people represent the Muslim world? Do 19 people represent Saudi Arabia? Does Saudi Arabia represent the Muslim world?
The Muslims speak the language, know the customs, can blend in and infiltrate. That's an advantage the West doesn't have. During the Indian Wars of the 19th Century, who were the best indian trackers and indian fighters? Other indians.
"He who does not think himself worth saving from poverty and ignorance by his own efforts, will hardly be thought worth the efforts of anybody else." -- Frederick Douglass, Self-Made Men (1872)