I think “pervy” is perhaps a word too loaded with judgement to apply it to every man and we need to be careful about generalising human behaviour but yes, I think we probably need to accept that there are differences (generally) between the ways in which men and women are wired.
My personal opinion from what I have witnessed, (I’m 46) is that men generally have a constant sex drive throughout their lives whereas for women, it fluctuates depending on our emotional/mental state and our hormone levels. Many heterosexual marriages seem to struggle when the woman loses her confidence and sex drive at menopause but the man still very much needs regular intimacy.
Also, I would say that heterosexual men are naturally hard wired to notice women’s physical attributes, particularly the more sexualised ones such as chest, thighs, bum etc. They probably are genetically programmed to procreate so this is probably almost a reflex action especially with younger women of “childbearing” age. Novelty and fantasy do play a part in this, which is why pornography exists. The attributes that heterosexual women are drawn to are perhaps more varied and complex but of course we too look twice sometimes.
However, I don’t think we need to panic and write the entire male gender off just because their sexuality is different. The way a man has been brought up will be a huge factor in how he views and treats women as well as other influences such as the environment, society, friends, colleagues and the media. There are plenty of men who can feel attracted women but respect them and don’t feel the need to degrade them. Also, men can be just as drawn to a woman’s personality and sense of humour, they need kindness and a good laugh as much as we do, especially in a life partner.
What does concern me is the women who promote the degradation of women- the Bonnie Blues of this world who normalise the act of women profiting from being used by men. It distorts the view of what is normal and that affects all of us.