I feel like Asimov's statement has to be couched in some larger discussion. Taken in a vacuum, I can see some merit, but I can't say that I completely agree with it. Incompetent in what aspect? I feel that his quote ignores intention. For some, violence isn't something that they're resorting to due to a failure to communicate through conflict, it is the preferred tool for the job. He comes off a little condescending and armchair intellectual-y here. I prefer the Sun Tzu quote someone mentioned earlier in the thread, "Violence is a precipitation of two sides unwilling to compromise."