The primary motive for sexual assault is sexual. While sexual attraction may be influential, power, control and anger are the primary motives. Most rapists have access to a sexual partner. Gratification comes from gaining power and control and discharging anger. This gratification is only temporary, so the rapist seeks another victim.
Most sexual assaults are by people of one race assaulting people of another race.
The majority of rapes involve persons of the same race or culture. The majority of rapists are white males. Men cannot be sexually assaulted. Men can be raped, and they are often raped by heterosexual males. Male rape occurs in the public sector, not just in institutional settings.