@Fiercesoulking
Well 2 of 2 powers have massive ties to life. And also, maybe not creating, but prolonging or aiding would be more accurate to the user. That being said, It would seem that this god may be labeled incorrectly or specifically done so for justifying certain actions. This kind of thing is very common throughout history.
Vilifying the things who either threaten your personal gain, are your opponents for a position of power, have different opinions/morals than you, etc... It is incredibly easy to unify (and then by extension, exploit) a populace if you give them an easily identifiable target for them to hate. Something tells me this church is not for the peoples best interest, but maybe a different, more internal goal. 12 gods are "confirmed" known to exist, yet only 9 are mentioned by name in the books, and nothing is said about the others? Sounds like a cover-up effort to me. Just having inquisitors already shows signs of shady business and/or bias against a few opposing "religions" on a seemingly national security threat level.
That being said, I can see their reasoning for disliking this god and their blessed children. Their blessings make them extremely hard to deal with (control). Almost no authority could fully control them by legal means. They would quickly overpower just about any other person in terms of potential and their potential threat to the current normal. You essentially have a girl who can literally create a army of "immortal-ish" beings by simply giving life to whatever she wants. What if she does that to a metal statue? How cant you go up against a solid metal enemy as a common human? She basically has the power to make her world into an old Disney cartoon where she just has to ask and things do stuff. Like she would just ask a lock to open. The MC can literally grow an army, and feed them with 0 threat of natural disasters and/or enemy attack. He could single handily provide the supplies for a defending force indefinitely. Making a prolonged siege against him pointless and attacking his supply lines impossible. If he was to become an enemy nation's resource and supplies logistic's manager then the country would be in a very bad position if the enemy country were to invade.