<<Define rape without violence.>>
Statutory rape. You fuck a 15-year-old girl (Tracy Lords, for example) who wants to have sex with you. You both have a great time and then you end up in the slammer. Rape without violence.
I'm sure you recognize that violence without rape is still a criminal offence, don't you? The violence alone is already criminalized in and of itself. If it were violence that needed to be suppressed, there would be no need for sexual offences at all, the elements of violence contained in the rape would be sufficient to obtain a conviction. Rape is by definition a sexual offence with or without violence.