Radical fundamentalists, I believe they’re saying, make more palatable enemies. Same essential reason why Hamas was funded by Israel to split Palestinian support from Fatah - Fatah, as a secular and nominally leftist organization drew some international sympathy - Hamas, much less.
The other side of the coin is that Hamas was able to rise in the first place because Fatah had become incredibly corrupt and inept.
You can get martyrs and madmen from all sides, religious fundamentalists or not.