ISIS are butchers. So?
Groups like ISIS have sprung up throughout history for over 600 years in the middle east and other muslim lands.
Is it repulsive? Yes.
Will we change them? NO
THAT is human nature. NO people on earth can lay claim to being purer, holier or better. EVERY culture has had its day of infamy.
As Abraham Lincoln said: You can modify human behavior to some extent, but you can't change human nature.
Anyone who thinks that HIS/HER culture is superior for some reason and denigrates other cultures as inferior for some reason is fodder for neo-nazis.
We ALL are subject to the same thing: ORIGINAL SIN.
What did our good Lord say about "casting the first stone"?