I'm of the general opinion that we do appear to be some kind of minority, whether or not they acknowledge us as one. We:

(1). Prefer hanging out and intermarrying with those of our own group due to cultural similarities and clarity of speech. That is, it is often far easier to comprehend the actions of another person on the autistic spectrum than it is someone who is not.

(2). Many of us are incredibly verbal, even going so far as to put Internet communication and in-person communication on equal terms. After all, to many an Aspergian the only difference is the added tone of voice. This and other aspects of the diagnosis reflect a shared set of values and beliefs.

(3). We view ourselves as a "we" without even thinking about it. Most people with an illness or disorder do not self-identify with it. This alone implies a kind of shared consciousness or group identity. We see injustices as being done to "us".

There is a great deal of resistance to the idea of us being a political/social entity, but wouldn't it be interesting if these types of communications were exposed to the NT world? They'd be pretty hard-pressed to deny the existence of the minority.