Vulcans can be violent when necessary.
This. Also, they aren't apologetic about it, and don't have "illogical" qualms about it. They plan, calculate, and execute - be it torture, rape, murder or a wedgie.
Doesn't mean they can't be gentle and considerate, too. Although they probably plan, calculate and execute that as well.
However, it's difficult to understand why so many people want to refer to this ST6 piece of calculated brutality as "rape". When A punches B in the jaw, is that rape? When A drives a knife into B, is that rape? When A locks B in a room with a bomb or a ravenous tribble, is that rape?
Does it became rape when A is male and B is female?
Why, then, should a forcible mindmeld by A upon B be considered "rape"? It doesn't even begin to approximate what we know of Vulcan sexual practices - the finger rub (ST3), the feverish frenzy of the male (in some cases at least; "Amok Time" et al.), the lustful yearnings of the female ("Bounty"). There's no identifiable connection there, as AFAWK Vulcan sex doesn't even involve mind melds (although foreplay to it may, in some cases; "Fusion").
Timo Saloniemi