Absolutely feminists. Their reasoning is basically "Female sexuality is good, male sexuality is rape." So if something appeals to female sexuality it's empowering, if something appeals to male sexuality it's basically rape and should be banned. They only grey area is things like prostitution where it appeals to male sexuality, which they hate, but also extracts wealth from men and gives it to women, which they love, so you'll get feminists on both sides of the issue depending on whether they hate male sexuality or male wealth more.

If the picture above was an attractive man, it would not be controversial. Chris Hemsworth was topless in every Thor film and stripped naked against his character's will in the last one while female characters looked on in amusement, but the feminists only complained about the "male gaze" every time Scarlett Johansson was on screen.