Aside from the issues already mentioned, I do not think autism alone could hold people together. What I mean by that is the minority groups used as a comparison by the OP were held together by shared beliefs and ideals whereas this hypothetical colony for people on the spectrum would be based on a shared diagnosis that, while having a profound impact on a person’s view of the world, does not govern one’s moral or political beliefs and standards. I have heard people say people with autism are all very logical and, therefore, would all agree, and society would be entirely peaceful if run by autistics. Even if all autistic people were of the calm logical type, when it comes to the more complex problems of society, everyone's idea of what is logical is different. I am sure one could find an autistic person who thinks a form of socialism is the only logical form of society and find another who thinks believing any form of socialism would work defies logic. It is not that hard to find people, autistic or otherwise, arguing whether or not god exists, both claiming their own view is based on simple logic. A bunch of people with autism may get along well enough to form a support group for autistic people, but they would run into trouble if they tried to form a self-sufficient colony together based only on the fact that they all have autism.
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While Mr. Kim... has fallen prey to the inexplicable need for human contact, let me step in and assure you that my research will go on uninterrupted, and that social relationships will continue to baffle and repulse me.
- Dr. Sheldon Cooper (TBBT)