Is it normal to dislike your family?

I have a huge extended Roman Catholic Italian Family.

My mum came about about being sexually molested a few years ago and none of her brothers, sisters or parents believed her. I'm her daughter and I do believe her - why wouldn't I?

My mums family is very strange. They have money and status in a small town (population 50,000) so they think they are 'the sh*t'. They bully people into submission to kowtow to them and because they have a local business - most people rate them highly. however, the truth is that this family is entirely cold, mean, bitter, twisted and has many secrets. But, being old-fashioned, no-one TALKS and if they do they are ignored, punished, bullied or all three.

i was intentionally not invited to my cousins wedding (because we moved out of that tiny crappy town to get away from their dumb politics). she rubbed it in my face and all 25 of my cousins verbally abused me for posting (on facebook) 'that awkward moment when you're the only one NOT invited to your cousins wedding...' well all 25 cousins launched an attack. they picked on me, my parents and what they wore to the wedding, put me down etc etc.

is it normal that i despise them and dont' want ANYTHING to do with them? they will try to get me to come to a family event again...i know it...just to be assholes...but i refuse to go..

is that unfair that i dont want anything to do with them? ive dealt with this petty mean bullying crap my whole life from them - well, earlier years anyway. the only time i feel bad about life or myself is when i see them (which now, is only at funerals or weddings).

is it normal to be so detatched from extended families? i feel bad! :(