Interesting report having read more. Sad reading back through the thread that many are defending women and questioning the validity of the reporting.
In my experience of DM/step DM to six boys and having two brothers, the statistics do represent our family experiences, controlling behaviours displayed by a number of girlfriends/wives over the years. Behaviours have ranged from parting the boys from their friends, making threats about work choices, physical and verbal abuse, undermining choices, treating our family poorly by exclusion etc.
I've tried to support DS’s with good communication, by listening and by supporting them to work through managing these controlling situations. Important has been maintaining one on one time with my DS’s. Not often, but an occasional time to meet and talk as individuals rather than in a couple.
Meetings have included a chance to discuss my DS’s behaviours too. Supporting them to think through their part and their choices.
I do think as a parent, we should model good behaviours and support our adult children to be responsible and to have sometimes difficult conversations.
The most equal and relaxed relationship has been one DS who is gay. Their relationship is much more equal as it the way they treat both families.