There never was a mismatch. When a person is born, their body reflects who they are.
How would you know? You are not able to feel someone else's qualia or experiences.
Male or female. Thus changing the body creates confusion as the soul/spirit does not change.
Are you aware that all fetuses start off as female with female reproductive organs? The penis and cliterous literally start as the same structure, and the ovaries drop to become testicles. Everyone starts off as female, and about half of developing fetuses are masculinized by androgens later on in the pregnancy.
So even ignoring one's own experiences and self-knowledge, you're literally wrong on a purely physical basis.
Also, as a general note, sex is much more varied than you might realize; how would you classify intersex people? What about conditions that gives someone one gendered phenotype but the genetic configuration corresponding another phenotype? Androgen sensitivity disorder is an example of that, where the chromozones are XY but hey have female reproductive organs and secondary sex characteristics from birth. Such people usually don't know they have the condition unless their genetics are tested. There was a famous case of this with an athlete years ago, where she didn't know she was born with XY chromozones.
There are also 'chimeras' or people who developed as basically fraternal twin zygotes that absorbed early in the pregnancy into one fetus. There's literally been a case where a woman's own child didn't match to her DNA in testing, because it turned out that her reproductive organs were the DNA sequence of her unknown twin that was absorbed into her during the pregnancy, while the rest of her was her own set of DNA. Likewise fraternal twin zygotes can be of different sexes and so chimeric individuals can have different parts of their bodies with XX or XY. And let's not forget klinefelter syndrome where an individual is XXY and has sex characteristics of both males and females.
I would say rather, confusion exists in the person prior, to any change, but it is not due to the mismatch of body and soul/spirit.
How conveniently transphobic.
Native American are no different than any other person on earth as far as body, soul, spirit.
Everyone's body, spirit and soul is different, regardless of ethnic or cultural differences. However, we cannot ignore one's beliefs about their soul and spirit when we are discussing it; their beliefs are part of that reality. People generally know themselves better than anyone else can.
This is my 'Christian view'. I say these things based upon what I believe the Bible is teaching. The Bible declares to be the Word of God, and I believe it. The Bible being both Old and New Testament. 'Male and female created he them'. (Gen. 1:27)
Good-Ole-Rebel
The Christian bible is not a medical textbook and you do it a disservice by trying to make it one.
Saying god created man and woman doesn't automatically mean that one's assigned gender, even if based on primary sex characteristics, is always going to be accurate to either their medical sex OR their gender. Simply put, saying god created man and woman says nothing to refute transgender people's existence. A binary transgender person IS male OR female, it's just that people got it wrong or there is a medical issue mismatching the brain and body; that is perfectly fitting within being one of the two things that the Christian bible says that god created.
Likewise, the Bible also doesn't list every single type of thing that exists in the world that we know about, will we ignore them existing too because they are not mentioned? Saying that god created man and woman in no way means he didn't also create nonbinary people. They very much do exist, so if god created everything, he obviously created them too.
Either way, religion is NO excuse for transphobia or nonbinary erasure, same as religion is NO excuse for racism. People used the Christian bible to support slavery of African Americans too you know, and I can even point to the verses. Or, given your screen name and avatar, are you opposed to that even?