Earlier quoted context omitted.
I've found the vast majority of his stories to be pretty bad compared to his best books. Then again, the vast majority of his books are also pretty bad compared to his best books. Hollywood has made some great movies out of his short stories (the original Blade Runner, the original Total Recall, The Terminator). But you have to realize that these movies usually have little to do with the short stories. The movies are…
Those themes you listed are all covered well (and clearly so) in his many short stories. The novels, on the other hand, are obscure and meandering with often too many characters who are lacking obvious relevance or role. Also, too many themes are often intermingled and often not expressed very clearly and only obscurely alluded to. I am certainly not a critic of PKD’s themes – he is perhaps my favorite science fictio…
Setting those aside, I think your argument is harder to make where his best novels are concerned.
That said, I'd be interested to hear what you consider Dick's best short stories. Most of the ones I've read have been pretty disappointing (with the exception of a couple I cited elsewhere in this thread).