The first paragraph in the quote above makes several claims. I would agree that people can be emotionally different and not anti-social, and that problem can be caused when people "let their emotions get out of control."Akeron wrote: Psychopathy is not just about emotions. It's also possible for people to be emotionally different, but not anti-social. The problem is when people let their emotions get out of control by believing it's OK to force others to endure them.
The thread also only looks at extreme examples of psychopathy, and society gets away with this tremendously. It tolerates bullying, mocking, and teasing, labeling the victim as psychopathic when acting out after provoked.
The last part of the first paragraph in the quote is a claim that the cause of the problems stems from a belief about forcing other people to do things. The second paragraph makes another claim that the cause of the problem stems from people being provoked. These things might be associated with problems, but they are not diagnostic of psychopathy.
Psychopathy is a clinical diagnosis made by psychologists, although the media might stretch the meaning of the word. The main components of psychopathy are a lack of empathy for others and lack of self control characterized by impulsive acts that harm others. You can read a bit about it here: http://en.wikipedia.org/wiki/Psychopathy. Other studies have proposed a more detailed view: Antisocial Behavior, Impulsive Thrill-Seeking, Interpersonal Manipulation, and Cold Affect.
When the signs of psychopathy are not extreme in young people, the diagnosis might be conduct disorder, meaning that psychopathy is relative extreme by definition.
What you described are examples of real events that do happen, but the explanation of the causes describe something different than the characteristics that uniquely identify true psychopaths. That is not to say that psychopaths do not react when they feel slighted (they do) but others might react strongly in a similar situation without being psychopaths. The psychopath is much more likely to go on a killing rampage because of the combination of attributes that characterize psychopaths.