“Unwelcome sexual activity.”
What does that even mean?
Exactly what it sounds like. Initiation of sexual activity that is unwanted via means such as intoxicants, drugs, straight up physical force, or threats of both physical and ongoing social natures.
No one would bully these girls if the videos showed them crying in pain and screaming in desperation
Have you never met... well... YOU? That happens constantly and people exactly like you paint them as sluts anyways. Hell, the fact that this happens either way makes some women just give up and pray it's over with quickly so at the very least they're spared physical violence and hope that the whole incident stays secret so they can try to get through the rest of their life unmolested in at least one other sense. And your "kicking and screaming" qualifier counts for jack shit, in addition to brute force being the very LEAST of the methods that can be used to coerce someone no matter what a victim does or doesn't do there will always be a loud group of self-righteous sadists to drag them through the mud and revel in their pain dressing up their self-gratification as a "moral" crusade to get others to pile on the abuse with them.
If a woman is beaten or even killed resisting a rapist using direct physical force assholes after the fact will actually say she should have just given the rapist what they wanted and reported it later and she's a hysterical dumbass for not doing it. And if at any point a woman is just too physically exhausted to continue fighting YOU STILL JUMP ON THAT AS IMPLIED CONSENT! And if the woman strikes first when an aggressive man "merely" isolates and corners her, preventing her from simply walking away as he pressures her? Well then she's a crazy bitch who attacked a guy for "no reason" and it's perfectly fine to make her life hell. It's not the man's fault she interpreted him as a threat. And of course if she simply puts up with it... well if she didn't punch him in the face that's consent, right? It's not the man's fault he interpreted it that way.
If a woman is unconscious and unaware of what's being done to her or unable to respond that's also laid at her feet. Whether she's been drinking, been slipped drugs, or fell asleep in a locked room that somebody jimmied open it all ends up the same. What was she doing drinking? What was she doing at a party? Why didn't she have somebody watching her at all hours? What was she doing with a group of men, what else were they supposed to think except that she's coming on to them? But if it's men accused of harassing a woman the whole thing flips to: What, a guy can't have a drink? A guy isn't supposed to attend parties? A guy can't talk or look at a woman without being afraid she's going to think he's about to force himself on her?
And hell, even if a woman does have herself a big, burly, scary chaperone to scare off all the rapists if that chaperone gets any ideas well that's her fault too for trusting him and/or leading him on without returning some sexual favours. See, even when a woman is trying to be chaste then suddenly offering her body out as cheap payment becomes the only responsible thing to do.
If you go out anywhere, with anyone, for any reason, strictly monitor and control your own behaviour, dress in several layers with a chastity belt for good measure... you're still to fucking blame for what other people do to you because you had the vagina they wanted and it's unrealistic to expect them to hold themselves to the standards you will posthumously hold a rape victim.
THERE IS NO GODDAMNED WINNING OR EVEN REASONING WITH YOU FUCKTARDS!
But hey, let's say for the sake of argument the women actually agreed to the sex itself. They still didn't agree to be filmed and certainly not to have the act put up on the internet. That in and of itself is a sexual act - involving outside spectators - to which they never consented to and were not informed of. So it's STILL AN UNWANTED SEXUAL ACT. And by this unwanted act you're all too happy to call those girls sluts because even if they only had sex with one person you get to involve yourself by the actions of the one who posted the video online. Against their will. For the explicit purpose of harming their reputation, a malicious act for which you absolve the perpetrators entirely and of course do not subject them to the same standards of promiscuity you are currently attacking the women for despite also having sex. Sex surrounded by questions of consent you are pointedly trying to make people hostile towards for having been brought into the spotlight at all.