Matilda,
just to make it clear, the idea of them doing it, and having a lesbian sexual experienc when they find only men sexually attractive i find tedious, in practice i don't really worry about it. I just don't see why you would actively do that ,when from my experience and from what i hear from others, those that see themselves as heterosexual would really not consider doing anything sexual with a person of the same gender. in a way i admire them for their dedication to what they feel will further their cause, i just don't see that it would. sorry i know i'm not explaining myself well, but hopefully you can gather what i mean through my difficulty regardless
and i think the Media highlights any figurehead of a well established or currently in the spotlight group, what i would say is i believe Dunham put about assaulting her little sister in her own biography/ book, and Schumer also revealed the information herself.
I can't be sure on David Bowie, but Ched Evans, i believe the majority of his supporters felt their were inconsistencies and waiting for the appeal to finish before making judgement, but i do think unless you actively keep up with a story developing over time its hard to get a whole picture, for example as somebody who enjoys sport, with a similar case recently, Adam Johnson when it first came out many people that i read (so just to be clear not myself) were saying she lied to him, and she was in an over 18's club so theres an expectation that they are 18, it's only after sentencing I, like many others who hadn't kept up with the story found out after he plead guilty to Grooming and sex with a minor or whatever the official charge is, she was closer to 14 than 16 at the time ( dispelling many's even though she wasn't 18 in the club she was almost legal, eurgh) and that he had contact with her before, and even looked up the legal age of consent, and then when cold hard facts came out he was turned upon pretty much fully, even though the majority condemned him anyway. With the Kesha ruling everybody is condemning that Dr. Luke and saying its disgraceful. none are seen as suitable figureheads.
but on Sexual offences i think thats one thing both sides of Feminism and those fighting for Mens rights actually agree, its just both think eachother get off likely for sexual offences! so if everyone could just put sex/ gender politics aside thats somewhere we could and really should make some progress