I've decided I'm officially over people wishing pain and suffering on celebrities, even as a joke. I made this decision after reading an article on the Gawker network about an extremely sketchy "wildlife sanctuary" that's actually pitching itself more as an exotic animal petting zoo for the super-rich. My feelings on the zoo are pretty strong (short version: It is terrible and exploitative and endangers the animals and humans) but my feelings on the commenters saying, "Oh, I really wish the Kardashians would get mauled by a lion!" are even stronger.
Because no. The Kardashians do not deserve to get mauled by a lion. They do not deserve to die in a fire, they do not deserve to get disfigured by acid, they do not deserve to be locked in jail. They are guilty of nothing more than being famous for their looks and for making you aware of their existence. Wishing harm on someone for making you aware of your existence is really kind of a terrible thing to do to yourself--that's a lot of anger to carry around, even if you're "joking" when you do it. (I put that in quotes because many of the commenters actually said, "I'm not even joking.")
The same goes for Justin Bieber, Britney Spears, Adam Sandler, and anyone else who is probably more famous and less talented than they deserve to be. I can appreciate being irritated by the fact that success does not always accrue to the deserving, but letting it rise to the level of actually desiring physical harm to come to people simply for not deserving everything they've got doesn't make anything happen to them and it forces you into a slow, grinding, unpleasant ordeal of rage that I can't imagine is healthy.
So yes, do leave Britney alone, at least in that sense. Let's all just try to keep some perspective, and remember that these people aren't actually bad. In a world where Donald Trump is causing measurable harm to people in the form of inciting crowds to attack protesters, getting angry at Justin Bieber for making teeny-bopper music seems like an overreaction. Leave the hyperbole behind, ignore the Kardashians (which is actually quite easy to do with only minimal effort) and enjoy the life you have. You'll be happier.