Yes, many generations before us were into that sort of stuff. We're definitely not the first and Beyonce isn't the first to take advantage of it but drugs, partying and sex still fill up mainstream music and still sells.
None of which is exclusive to our generation. So stop saying our generation.
You are correct that the goal of feminism is to achieve equality for women. This is done in many ways, not the least of which is to attempt to create a world in which women are autonomous, that is, free from the unfair and unwelcome influence of men in their decisions. This influence exists in many forms, some of which are explicit such as a man asserting his "right" as a man to beat his wife or a father forcing his daughter to be a nurse because it is a "woman's job." However, sometimes this influence manifests itself in more subtle ways. Are you familiar with "take back the night" rallies? Women rally in parks in order to end the unfair influence men have on their lives that makes them feel scared to walk through a park in the dark for fear of assault. Men, being physically stronger on average, have this implicit power of women by default.
Now, when a women makes the choice to have sex with a lot of men, she is often called a slut or a whore. This is a manifestation of influence. These words are obviously meant to make the woman feel bad for making the decision to have a lot of sex. That is not autonomy, that is being shamed for deciding what to do with your body.
Men, on the other hand, do not suffer this. When a man has sex with a lot of women, he is often praised, and if not, the worst thing he is called is usually "man-whore." The only bad social consequences a man experiences from having a lot of sex is an insult that derives all of it's power from comparing the man to a women, specifically one who has lots of sex. Why is that a bad thing in the first place? That is not equality.
As for women spreading STDs, I have no idea where you pulled that out of, or why you would think anyone would support it.