There cannot be an advantage for you Americans. The only possible consequence is that hardline Muslims in the US are being encouraged to kill Americans.
Lets just call it the lesser of the many evils of Islamism and hardline Muslims need to encouragement no kill Americans or anyone else for that matter ... they live only to kill so all are best served letting them have at each other.
If you are so much after it, invite them to do that in
your house. Surely, your family will appreciate your "great" idea.