A Space Marine's combat knife also has a mono-molecular edge, yet you don't see those chopping through power armour etc like there's nothing there.I guess I dint know how to think about patriarch resilience, because I the one hand they are incredibly tough, but on the other more than half of them are dead. And something killed them.
On the topic of the game harlequin's kiss . . . It isn't full of "razor wire" or "sharp wire", it's full of mono-filament wire. My recollection of the description is that the wire is a single molecule or atom wide and cuts by passing between the bonds of other atoms/molecules. At least in the old fluff it could basically dice anything it touched armor, flesh, or supernatural being.
I don't know if any of that has changed though.
I'm not really taking a side, I just don't know how to think about patriarch resilience.
Food for thought.