Hey, I've got an idea... why don't we just say all the murderers, rapists, child molestors and criminals suffer from Bipolar. That would solve alot of problems.
Because only an ignorant, bigoted fuckwit would believe such a thing. Bipolar illness, in the up phase causes you to act impulsively & without following through on that initial idea. I can only put your experiences down to one of a few things
1 - The people you know/hang around with are generally manipulative, amoral whingers that don't take responsibility for their actions, just you've singled out the ones with bipolar illness as something completely separate from the rest of your acquaintances with the same personality
2 - You're so blinded in your dislike of people with bipolar illness that you take something that is part of everyone's personality to some degree (who never trys to pass the buck in a blame situation - nobody; everyone's done it at some point), but blow it totally out of proportion when dealing with people with bipolar illness.
3 - People who aren't bipolar say that they are and then use their imaginary illness to try and excuse themselves for totally unacceptable behaviour
As I said, bipolar illness is characterized by poor impulse control & determination to follow through. As such, things like turning up late, planning something than not carrying through with it etc are typified by the illness. Being a selfish shit has nothing to do with being bipolar (there no mention of it in the DSM-III criteria for diagnosing the illness), it has everything to do with maladaptive personality traits or something more serious like sociopathy/psychopathy and the fact that those traits also go hand in hand with being manipulative and being convincing liars
I have a little cunt of a brother that apparantly suffers from ADHD and it's almost the same deal. He treats my mum like shit, tells her he hates her, has attempted to hit her, steals, lies constantly (not to get himself out of trouble either, it's to cause trouble), swears to strangers, walks around the house in the nude and plays with his cock in front of my mother... I could sit here all night.
Whenever me or my other brother try to discipline him, he spills up this "ohh, but I have adhd, I can't help it", and so do the parents.
He doesn't have adhd, he knows perfectly well what he's doing, he just obviously hasn't been disciplined and is a spoiled little prick of a thing.
I guess what point I am trying to make is that some people are just devoid of any love and enjoy being arseholes to people and get kicks out of this. Just inherently evil, as I said before.
There you go, you've just backed my arguement. In the same way, people are not misdiagnosed, they lie and say they have been diagnosed bipolar so that when they behave like twats they have something to blame it on to wriggle out of any responsibility. For all the ones that you say blame their shitty behaviour on being bipolar, how many do you know for definite have a clinical diagnosis for it (and I don't mean that they or their partner say they are, but have something more conclusive like a cupboard full of meds used for treating bipolar illness - things like lithium, carbamazepine, sodium valproate etc)? I'll bet once you get down to the people with proven bipolar illness, you've suddenly removed a great percentage of the arseholes you've mentioned.
Just because someone says they have an illness doesn't mean that they do - some people do things like that so they set up their excuses beforehand. You should take that into account before making sweeping condemnations of a certain group.