This could be in Personal or People subforum instead but in the long run this subforum (DebateArt.com) will get the thread maximal visibility.
I am not speaking from a professional perspective here, it is a private theory I hold but I do think I can challenge pros at this dichotomy once they realise guys like myself exist. (It is a dichotimy, no third option, I have become quite certain)
Autism is definitely part of it but that label (diagnosis) includes many who do not like to argue at all.
There seems to be a subset of primarily autistic and/or schizophrenic types of people who are geared towards argumentation. These people are rare even on websites like this. They actually thrive in debates and enjoy arguing itself.
All our young lives we get labelled an obnoxious, unruly, irritating etc guy/girl, branded toxic, pushed to conform, be timid and tame. Even many who will try to love us will fail to and accidentally emotionally abuse us by trying to 'guide' us to kill off a vital part of our core self.
The issue is these people do not mean harm by their wiring. They actually mean to find truth or alternatively to help a person bite back with backbone and confidence and both help the other grow and gain perspective on his/her side of the argument.
We make enemies constantly the moment the 'real us' shows and those that are similar to us have often been hardened and traumatised to the point that they are cold and jaded.
The others do not have an in-between aspect to them, if I am correct on my theory they are not ever in between. This is not a hypothesis, it is a theory I formed with multiple people I met online and offline as data points. People are either geared towards agreement or towards argumentation (which is mistaken as wanting to always disagree).
This tendency to argue is mistaken as rebellion for the sake of rebellion. I do not mean that trait or attitude. I mean people who when their new colleague says the religion he/she belongs to, want to immediately explore it, tear it to pieces and be fascinated or fascinate the other, either way. This is consistently received as toxic, rude and/or malicious whereas the natural arguer instinctively means it as a form of connection that they feel cannot be achieved by ignoring the religion in-depth and pushing it aside.
This can be anything from characters in TV shows to the best car brand. We argue by nature and show love and care by it even, which leads to natural nonarguers bullying us, shaming us or other methods of emotional abuse and they see us as the aggressor consistently.