Yeah, if you live way out in the woods ALL ALONE and don't ever want to be visited by anyone, or any other animal.....Then a pitbull is a fine choice.
But in a society where we all try to get along with each other as best we can.....they are a bad fit.
There's a good reason why Lions, Cougars, and Tigers are not known as good pets too. Although I'm sure they can be very sweet.