So, do they see him as a greater threat?

It's all in the spin.

Donald Trump Brushes off Al-Shabaab Video That Uses His Words

The claim of the left is Muslim terrorists use his words to prove America is at war with all of Islam, and use that as a recruiting message.

The right could claim he is perceived by ISIS as a more serious threat to them and that's why they use him in recruiting.

As for ISIS, of course, either way works for them.

But what the hell.

Hitler used FDR's words for recruiting before 1941.

Communist rulers always used the words of American leaders for domestic propaganda, and still do.

And who believes it's just The Donald's words that are used by Islamist propagandists?

Western politicos should no more censor themselves than cartoonists, news media, novelists, You Tube video makers, or anyone else.

Trumps words prove we are angry.

Self-censorship proves we are afraid.