The trouble with that theory is that most (not all, but most) of us HATE that we hurt people without meaning to and will bend over backwards, even sacrifice our own well-being, to prevent it. Donald Trump seems to revel in it. Plus, it's unlikely that he would have been so materially successful if he didn't have full control of his attitude.
I seriously doubt he's autistic. What he is, is a locker-room back-slapper. A nasty high-school bully, who rose to the top at a time when that was still not just an acceptable thing to be but the peak of the social pyramid, the ultimate winner, put there by other people who learned to operate in that environment, even though it stopped being cool, or even really OK, around 2000 or so. My generation was THE LAST ONE to grow up with the idolatry of that guy.
And YEAH-- Hillary plays by the same set of rules. He's the high-school bully; she's the mean girl who always manages to make it sound innocent. Your best interests are just what she's using to get elected Prom Queen. If she'd gotten there, she would have forgotten all about you, and spit in your face. The Presidency isn't a service with these people. It's an achievement, the ultimate feather in their caps (as my grandmother used to say). They're there to serve themselves and their friends. They don't give a damn about you, or me, or anyone down here on Plebe Street. We're cattle. Pick the one that will feed us and bring the vet around until butchering day arrives, or the one that will let us go feral and take our chances with the vagaries of nature in the hope that we'll be that 1 in 1,000 that slips both disease and the butcher and lives to be a wily old feral cow...
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"Alas, our dried voices when we whisper together are quiet and meaningless, as wind in dry grass, or rats' feet over broken glass in our dry cellar." --TS Eliot, "The Hollow Men"