ABC's David Muir was worried that Trump's tough stance on finally vetting those from terrorist areas might "upset" those that already hate the US (i.e. ISIS, etc...).
Just shows how clueless the main stream media is...worried that we might upset the terrorists trying to kill Americans.
That's not at ALL what he was trying to say. You can't be serious, you have to have better comprehension skills than that.
He's asking that if we start banning a whole group of people and turning our nose at them, them as a whole may get "angrier" and it will be easier for those groups to recruit others into their extremist ways. You don't have to agree with that, fine, but your understanding of what he was trying to say is completely wrong.