Raya –
I would say it depends. Some people just have aggressive personalities, as do many members of their families, and in those cases, there may be several relatives who are predisposed to becoming abusers (although there is no guarantee that they will).
However, many people become abusers do to their own experiences (NOT EXCUSING IT IN ANY WAY!!!!!), and that would be irregardless of family. There’s a caveat though – let’s say one’s father was abusive, so he grew up with that and it becomes ingrained in him, he may indirectly be abusing because of his father. Not genetic, but due to family experience.
Basically, it can go either way.