Survivors of sexual assault, rape, and abuse can experience PTSD from their experiences. If you haven’t experienced sexual violence, if you aren’t part of a marginalized group of people who is made to feel constantly at risk of having those experiences, “you can’t understand what that does to the psyche”. Am I arguing that one kiss, no matter how violent, would lead to that? No, that would be out of proportion to the incident and seems extremely unlikely. I am, however, trying to emphasize that sexual violence is a matter to be taken as seriously as physical violence (and, in fact, often does involve physical violence). They can both have just as lasting and devastating effects on the psyche. Also, if you want to idealize (instead of idolize) what soldiers fought for then I think you probably agree that they fought for freedom and happiness– two things he denies this woman by forcing his attentions on her; that makes this picture most emphatically NOT a symbol of what soldiers fought for.