Cycles of abuse are well known and well documented - generational trauma is equally well understood. What you are failing to grasp is that these are not the only people vulnerable to abuse, we see victims of abuse from every walk of life, from every background.
It is the not the case you are immune if you have had an idyllic childhood, or condemned to a life of violence if you have had a dysfunctional childhood. This is far too black and white.
The truth is anyone can find themselves in an abusive relationship, and through no fault of their own, they can be fire fighting in the most difficult of environments.
I suggest you do some more research, and consider exploring your narrow world view on the subject.
It’s much more common than you can ever imagine, and the way out is educating girls especially, early and across the age groups. Targeting known vulnerable groups with one to one counselling and specialist care. Support needs to be more readily accessible and available, and society needs to get tough with the perpetrators through reeducation ‘think first’ programmes and strategies, counselling and long prison sentences. It needs to stop.