I can't speak on the movement as a whole as I do think there are some troll accounts out there, but I personally know two people who are active in the deznat conversations on twitter.
They are on the very devout end of the mormon spectrum.
They are extremely conservative.
They genuinely think that Donald Trump is the greatest president in modern history.
They believe that anything LGBTQ is a result of satan's influence, including any softening or appearance of softening from the church.
They are very much scriptural literalists.
They go to church every Sunday.
They hate the church's new gun policy and they don't like that the November policy was rescinded.
This is a basic rundown of the types of people they are.
I often see people claiming this movement is fake and manufactured by trolls and I cringe, because it is real on some level.