As an adult, I can appreciate the nuance of the positions of these various sects (though to be clear, I consider myself an atheist at this stage of life).
But as a young child required to learn about how the world functions according to these ideas during the critical period of self-formation, such nuance was lost, and many foundational/implicit beliefs were formed and ingrained.
More broadly, I think it’s interesting to consider whether some of this is an unintentional side effect of the teachings, even if the texts technically communicate something else.
I know that for me personally, when I first encountered other schools of thought on the mind/body connection and my concept of my own self/body started to shift, all I could think is “holy shit, this is the opposite of what I was taught”.