No. I've lost family, as most others here had as well I'm sure, and if I could take that back I would. The times afterwards and feelings of loss were extremely difficult to get through, as most have felt I am sure, but no, not even these memories would I take away as they happened for some inexplainable reason which I do not quite comprehend.
I have not experienced any of the horrors mentioned above however (sexual abuse, combat, etcetera) and if I did I am sure I would retract my above statement. At least I believe I would.