Hylomorphic dualism is an attempt to resolve the mind (soul) body problem. Hylomorphism is a philosophical theory developed by Aristotle, which conceives being as a compound of matter and form. Later Thomas Aquinas develop his own theory assuming that form is soul in human case. We however know that attributes like personality, identity, etc are subject of destruction due to disease or death. This means that soul cannot own these attributes. This means that the person should be recreated upon resurrection in order to have former attributes, namely personality, identity, etc. This however sounds odd and not acceptable as a right theory since a right theory must at least guarantee the passage of identity upon death.
It seems your argument can be summarized in the following way (but correct me if I got something wrong):
Premise 1. Personal attributes like personality and identity can be destroyed by physical changes.
Premise 2. The soul, in the hylomorphic theory, cannot be destroyed by physical changes.
Conclusion. Therefore, personality and identity are not attributes of the soul.
Then you further go on to argue that, if we will have the attributes of identity and personality in our resurrected bodies, these attributes will have to be recreated, which essentially involves creating a new person. And this is problematic.
Does that seem like an accurate summary of your argument?
If so, then it seems that there are three possible responses: we can deny the validity of the argument (if it contains a logical fallacy), we can deny the second premise (denying the hylomorphic theory), or we can deny the first premise.
Denying the first premise seems safest to me. I don’t think physical changes can destroy your personality or identity. Perhaps we are using “personality” and “identity” in different ways? I think our personality, identity, and rational nature make use of our bodies in a similar way to how a musician makes use of his instrument. If you damage the instrument, you don’t change the musician, but you do change the musician’s product, i.e. you change the music. Similarly, if you damage the brain, you don’t change the soul, but you do change the soul’s product, i.e. you change the person’s behavior. Does that make sense?
It might be possible to put it this way: our personality, identity, and rational nature are filtered through our bodies. If you change the filter (i.e. the body), you can Seem to change the personality, identity, and rational nature, but you’re actually just changing the way they appear to us on this side of the grave. After death, any problems created by damaging the body will be undone, and our true personality/identity/rational nature will be there in a pure form. In this life, other people get an imperfect view of your personality/identity/rational nature. These imperfections are a result of bodily limitations and original sin. Damaging the brain adds additional imperfections, impeding other people even further from getting a true view of your unadulterated personality/identity/rational nature. Take away the damage, and you’ll be more perfectly revealed to others. Not a new person, the same “you” will be there in the resurrection, just without the imperfections. Does that make sense?