To your recollection can you point a time in the collective social eye where heterosexual male masturbation was championed celebrated, or even normalized? If you took 1000 random people and searched through a random woman's purse, or a random man's backpack, and a discreet, respective sex toy was discovered, whom do you think would be more positively received by those people?
My point is even if you haven't experienced it personally, overall there is a very paradoxical modern societal reconciliation with masturbation; more positively incentivized and encouraged amongst women in general and more demonized/vilified for men, even if ideologically recognized as purely biologically healthy behavior. It is because of this core bias that I don't think this particular society is equipped to deem what masturbation is healthy or not, short of the extreme.
Quite honestly, I think you’re overthinking this. It has nothing to do with social acceptance. At all. It has do to with dependencies, and addictions. I’m not talking about what is socially acceptable or not. That point is moot in this conversation IMO.
We could change the topic of this to drinking alcohol, or coffee, or to eating, or to playing video games and my response would be the same. If it’s something that has a direct effect on your mood, and becomes a necessity for you to indulge in or you will be in a bad mood, that is called being dependent upon something and that leads to addictions.
i think it’s important to be aware of this, and to be mindful of what is affecting you and your emotional state, so I point it out.
In the topic you are wanting to bring up. Why is, do you think, there is a difference in the outlook of men vs women when it comes to masturbation? It’s simple. Men are in charge, and men have objectified and hyper sexualized women for thousands of years. Men have monetized the female body, and turned it into a prize. So when the societal outlook of a woman is to be a sex toy, then yes they are going to be allowed to act in a more sexual manor.
Men, want to act this way, but it’s far less accepting because the men who are in charge are also homophobic. The idea of hyper sexualizing someone also comes with a feeling of superiority over that person, and straight men are not going to hyper sexualize themselves to lose that “power”.
Ever wonder why it’s been so difficult for women to get equal footing in our society? Because they are not looked upon as equal. That’s why sex workers, even though it being the oldest profession and literally the reason many coastal cities even exist, are looked down upon even though it’s the same people who look down upon them who are their patrons.