My brother married someone like her.
I tell my dc that not getting along with family and isolating you from yours are key signs of narcissistic behavior. Or at the very least their aunt by marriage.
It is heartwrenching to lose family when you have done EVERYTHING that was asked. The last straw was when DM died and they used personal and private information to attack me. After crying my heart out, dh and I blocked them from everything.
I still look at them on sm but less and less. Every time I think of reaching out, I remember my hurt and humiliation. I NEVER want my dc to see me that vulnerable, not will I ever be in that position again.
To me, Harry's family needs to understand his wife and perhaps leave the door open but protect themselves at all costs. She has big guns behind her who would delight in hurting or puncturing the RF.
I do not think that she is kind or compassionate. If Every one has the same story, you should pay attention to the noise. I hope and pray and tell my dc to look for spouses who value family. We are stronger and more safe with people who love you unconditionally