Now what is that supposed to mean? The Abu Sayyaf are nothing more than a gang of thugs who like kidnapping for ransom and decapitation. It's a pity they've survived.
Which is exactly why they're notIslamists. While they are Muslim, there goal is simply to make money through piracy, kidnapping and other nasty stuff. It isn't to advance Islam or defeat Christianity or anything of any wider sort. They have no political agenda. They need to be destroyed, but in this case, their religion is purely coincidental.