Is it normal that my family doesn't get along?

My brothers and I don't like my sister because she's a narcissist and a bitch;
My youngest brother doesn't like my Mom because she let my brothers get abused by my stepfather;
Everyone hates my Dad and my stepfather, which doesn't matter because they're both dead;
My sister hates my stepmother;
My sister and I hate each other;
My brother moved to the other side of the world to get away from us all;
My youngest brother has taken on his wife's family as his own, because he thinks his own family isn't up to scratch, so we see him once a year, if that;
And right now, no one's talking to me except for my Mom, apparently because I didn't do the dishes enough at Xmas (because I wasn't game to be in the kitchen with everyone else, understandably).

WTF is wrong with my family?