Ssainhu, please know that I respect the balanced perspective you bring to the table.
However...
Where did this absurd term "Islamist" come from anyway? (Yes I read the link) As far as I'm concerned, they're not following Islam; why are they being labeled as such?
Do you deny that the Quran exhorts the believers to wage war against the unbelievers, to bring all people to Allah's true religion™?
Or that, according to the Quran, unbelievers - more than 65% of the world, are going to hell? Believing the 'other,' the 'them' to the exclusive 'us,' is going to be tortured for eternity by one's god is a powerful poison in one's dealings with, and regard for, 'them.'
I suspect that holding such humanistic viewpoints you're rather in a double bind, and thus of two minds:
On one hand, Islam has many noble aspects. Salat, a cultural emphasis on family and family values, etc. etc.
On the other hand... well, you know better than I perhaps.
Is your belief 100% ironclad when you recite kalima?
Do we call the likes of David Koresh and Timothy McVeigh or Christian terrorist "Christianists"?
We can easily call them Christian fundamentalists. But this is more of a grammar thing than anything else. Double suffixes are rather unpopular. ian + ist is awkward. 'am' might be a suffix in a foreign language, but islamist is more grammatically appropriate in English than Christianist.
There is no justifying their behavior, so let's stop trying to label it something it's not.
Please submit an alternate term. As far as I'm concerned, it's the politicized aspect of literal Islam, to the extent that Islam isn't literal or political - it certainly was both at the time its inception and for hundreds of years thereafter - if it has been diluted, it has been by more liberal cultures and cultural influences (ie humanism) and thus, more liberal interpretations. For the record, I regard Christianity as just as insane, but castrated by Humanism.