Brains look exactly the same and function similarly, yet generate differences in personality, ability, gender, perceptions of inappropriateness of biological make up etc. One man interprets his biology to mean he is a man another concludes he is a woman. Agree or not with such dichotomies, the evidence shows clearly our brains are more than their physiological make up. We are not just the sum total of chemical processes in our body.
Determinism, whichever way it is interpreted is a recipe for chaos, disorder, and perhaps another World War. Are the people you quote seriously toying with this notion of determinism or just looking for funding to support their disciplines? I assume it must be the latter.