This seems like bait but I’m answering anyway.
No, I think it’s still a bad thing because (as with most religions) it fuels beliefs that prevent people from even considering trying to solve problems like aging and death because “heaven will be better than mortality”, “God will make everything better”, etc.
In addition, even while they have more children than the general population there’s an estimated 46-60% retention rate of young adults staying in the church. If you factor that in, even assuming 60% retention the overall birthrate of ~3.4 * 0.6 = 2.04 birthrate of those who stay Mormon[1], and so by that metric they are disappearing just like the majority of the developed world (this is not taking new converts into account).
That being said, population sustainability is a real economic and practical problem in the long-term. Any rationalist with a sufficiently stable economic situation should seriously consider having kids, if for no other reason so that more humans grow up in an intellectually healthy situation.
- ^
Please correct me if this is the wrong way to estimate this.
I had a very similar experience as a teenager after a mild concussion from falling on ice. According to my family, I would ‘reboot’ every few minutes and ask the same few questions exactly. It got burdensome enough that they put up a note on the inside of my bedroom door with something along the lines of:
”You are having amnesia”
“You hit your head and got a mild concussion”
”You’ve already been to the ER, they said you’re likely to be fine after a few hours and it is safe to sleep.”
The entire experience was (reportedly) very stressful to me due to disorientation.