There is a quote from Gandhi: "You must not lose faith in humanity. Humanity is like an ocean; if a few drops of the ocean are dirty, the ocean does not become dirty." I would say that it is far more than just a few dirty drops, and that most Aspergers tend to grow up and stay in the more polluted area. But overall humanity is really not that bad (although certain processes can lead to a high level of anxiety within some people or a whole society and to really bad stuff).
Aspies' grounding into the interdependence of the social and their appreciation for the small kind reactions is often somewhat underdevelopped; people who have had a lot of bad experiences, tend to fixate on the bad and creepy things around them, out of a kind of self-defense, and to exaggerate their anxieties.
I would try with small relationships, if you are too scared of bigger relationships. Stay a little away from the nasty people, relate more to the nice ones, take only smaller doses of the difficult people. You can do that even in a coffee bar or park or on wrongplanet, and just mentally, by relating more to the nicer people around you and the nicer posts in a thread than to the not so nice ones (people like me who have had a good childhood are doing that in any case, too). That helps with getting more confidence in humanity as a whole, and has some kind of trust building and anxiety-reducing effect which will be very beneficial for your future relationships.
You can also try with some kind of mantra like: "the cashier has been kind", "kraftkortie has been kind", "XY has been kind".
It feels a little stupid, I know, and it is not like being brought up in a decent family, but still ...