It really has very little to do with men "being owed sex" by women. Most men don't really believe they're owed sex by women, or anyone for that matter. The big issue is that society has placed such an emphasis on premarital sex and random hookups and casual sex that young men are beginning to feel like if they aren't having sex they are missing out on an integral part of life, which is not the case.
Sure, there are definitely men out there who truly believe that women are simply there to please them and be their slaves, but that is not the case for the vast majority of men, even so-called incels. They have simply been led to believe that sex is an amazing, huge part of life, that it is integral to a normal life and, while it is important to a healthy relationship, it's not necessary to live a normal life.
It also comes back, in a way, to the destruction of traditional masculinity. If they can convince millions of men that sex is the only thing that matters, that it is the most important part of a relationship and of life, then that's all they're going to care about. They're not going to focus on other things such as learning new skills or trade or bettering themselves in some other way.
Of course, the funny part of all this is that by convincing men that sex is the only thing that matters, they are completely reducing women to only being important in a sexual way. Although, I suppose that's part of the plan too. After all, we can't have women being motherly figures or caring individuals in a household or in life in general. We have to have them choose careers that debase them and destroy their mental well-being. It really is all connected I guess. The destruction of the family unit, the destruction of traditional masculinity, the destruction of traditional femininity, the sexualization of children... It really does circle back to the destruction of traditional values in a way that lets them swoop in and replace traditional morality with some sort of perverted new age "progressive" morality.
Anyway, that's my $0.02
The problem is listening to what women say that instead of watching what they do. If they actually wanted a nice guy there wouldn't be an entire sub on the pedo site dedicated to mocking them.
True. The sexual dimorphism of humans means we fulfill different roles. Men are the protectors and providers, evolving to be bigger, stronger, and more logical, who do the dangerous tasks far from home and tribe. Women are the mothers and homemakers, evolving wider hips, breasts, more empathetic and emotional, who do the safer tasks close to home and tribe, like raising and feeding the children and taking care of the home. This is the entire basis for marriage. One man and one woman come together to form a complete human that can perpetuate the species. Both sides benefit from the contract, exchanging favors through their evolved role. The man gets exclusive breeding rights from the woman, ensuring his line will live on, and the woman gets exclusive rights to the man's protection and provision.
Since women and children are weaker than men, and women are especially vulnerable during pregnancy, men became the disposable sex, especially in conjunction with our role. We see this everywhere in society, even modern warped society, where men are still expected to drown on a sinking ship if there aren't enough life boats for everyone. "Women and children first."
In any case, this explains what each sex seeks in the opposite sex. Men pursue attractive women with wide hips and large breasts, prioritizing beauty and youth, which ensures greater success of many and healthy children. Women pursue strong and wealthy men, which ensures greater success of being protected and provided for, for herself and her children. "Nice" never enters the equation. However, most normal people will naturally be kind to the one they wish to marry and have children with. Still, modern society has warped what it means to be nice, especially with men, who are increasingly feminized and attacked, and masculinity demonized. Masculine "nice" is not the same as feminine "nice".
Men, as a matter of our nature, prioritize truth and logic first, as a means of better fulfilling our role and surviving. Women, as matter of their role, prioritize life, empathy, and emotion first, as a means of better fulfilling their role, so they, and especially their children, can better survive. As a philosophical point, truth must hold higher priority than life. This is why all groups of humans, regardless of size or pursuit, will naturally become patriarchal, as men are the ones most capable of upholding the proper priorities. Only through globalist propaganda and top down control can this be warped, for the benefit of the globalists, and to our detriment. It's a tool used to weaken and control us. Women can be swayed with logical fallacies, especially appeals to emotion, popularity, and authority, which globalists always use to sway "public opinion". This explains the voting demographics by sex.
Modern "nice" being taught to men is having all of warped degenerate society, and women, walking all over us and using us, as little more than slaves, having government and globalism replace our role, attack masculinity, and attack men, while simultaneously they take up the role of protector and provider for modern corrupted women, but yet in a modern relationship, often childless and meaningless, the man must still make more money than the woman and be the traditional protector and provider, and yet, all men must somehow be okay with this, because we're supposed to be "nice". This is one of the main reasons why modern women have become so picky in the dating markets. How can any one man compete with tyrannical government and globalism?
Modern globalist society isn't just degenerate, it's completely opposite of the natural order, antithetical to our entire evolved nature and the true philosophical foundations of what it means to succeed, survive, and thrive. This is why every aspect of modern globalist society is crumbling and destroying itself. Lies cannot persist forever.