I'd say we're dealing with intra-religious variations of folks who take their religion with logic flavored with a grain of salt down to those who take the same religion with self righteousness flavored with violence. You can find this spread in every religion including too many who think they can use the term science as justification.

I am reminded of a quote from someone not usually considered a moderate:

"I beseech thee, by the bowels of Christ, think it possible you may be mistaken."

I know some non-Pentecostal Protestants who may be about to experience a major split in their church between liberal acceptance of the spectrum of human sexuality and conservative adherence to a fundy perspective, and yes, though the church is the same, the fundy portion is anchored in Africa, abetted by Western fundys who helped put it together.

I've known some American Pentecostalists and not been exposed to extremist views from 'em.

And don't get me started on snake handlers...