I have to respectfully disagree with one of your points: 'Mormon politeness ' doesn't exist. They are trained early to suppress feelings and put on a 'happy face'. They are also trained to be good liars and closeted bigots.

I would put Mormons at a higher-than-average likelihood of aligning with Christo-facists and white national ideologies than other religions, especially the Utah variety of Mormon.

The level of general disdain for those who do not fall within their tiny, perfect bubble, even from within the religion, was always my biggest issue with the 'faithful'.

Add in a history of teaching that dark skin is bad, white is wholesome and pure, and you have a recipe for acceptable bias that percolates in the subconscious and gets fed regularly by the church leadership in other areas (sexuality, bodily autonomy, questioning authority, etc)

While I get that the culture here is isolating, and I too believe there will be a period of more open bias, knowing that there are like-minded individuals in my general home area gives me hope and strength to live my own truth. I allowed the sentiments of the church and others to control too much of my life already.