You honestly don't see how there could be a campaign against him? Look at all the shit he has spoken about, publicly, over the years...regarding the black man. Thats what WE hear. Think about the things he says behind closed doors, and the people he most likely pissed off over his life by telling it like it is.
This is what these people do. They know there is power in the masses. Between mainstream media and SJW,s, a campaign like this is a drop in the hat for the,. they can do this in their sleep, shut down someone they don't like, and get paid for it also. Big win.
None of that actually addresses if he did it or not, but the idea of a campaign against him is not only possible, it is most likely probable in my opinion. Heck the guy liked the sex, he had the money, the woman liked it until they wanted more....again, just my opinion...based on how Hollywood works.