Like the above explanations, also think about $$$
A girl who is reasonably pretty and attractive can easily have sex anywhere from $100-300 per hour or less than hour. Many men will pay, her sexual value is high. Average looking girl can make some money from say from 50% of males. Hot looking girl, 8-9/10 can make much better money from 90% of all men who have money. If she had to work for it regular jobs, she'd have to work 1-3 days, that's if she's got decent job at first place...
The same girl can sleep with many guys for free, all she has to do is smile and lay on her back. NO other effort needed. So why do it for free if she can get paid for it? She would be stupid. If she is smart, she'll make $1000 per day, works 2 days per week, enjoys herself enough, and at the same time makes double salary than most men. No taxes, she could laugh about your struggles with taxes. So why would she work at first place? The less women are willing to sell themselves for money, the higher her sexual value is...
At the same time, there is over-supply of men in sexual market, the market is saturated with dicks, but there is not enough females who are willing to 'sell' their bodies. I put the 'sell' in quotes because females are also selling themselves indirectly, meaning she doesn't prostitute to more males but she finds a great provider who provides and provides, and she 'sells' her sex to him... That's right, if you still foolishly believe in Love, think very hard about it...
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Now imagine society in which males would stop chasing women, and instead they would start going to fitness. 95% of males would do it. They would lose weight, get healthy, look muscular, they would be excited about their lives, and at the same time they would ignore even pretty women...
Pretty woman would approach you, asks you whether she can get you a drink. And you say: Sorry, but I really got to go to fitness first. Maybe next week, thanks though! So she would at least ask you for your phone number. You give her your phone number. She would text you eagerly, trying to setup a hot date the very next day... Good, but you already have 10 different number from 10 different hot girls that are trying to setup date with you... So which one do you chose? Or do you chose 2, 3 or 4 of them? Difficult choice, you like all of them but don't have time for all of them... So you need to reject at least 5 of them...
Can you as a guy even imagine? We would have many offers for $$$, sex or other services. Females would be begging us just to stay at our place... They would clean up after you for free, suck your dick for free, wash your dishes - and she would never even think about bitching about it, because she would know quite well what does it mean to get a rejection boot...
Can you even imagine? No you can't. None of you can. That is why females are very smart, they are way ahead of us, they are much smarter than us... and we males are simply stupid. We are so stupid that we even want more "equality" for women, we want to give up more of our power and give it to them for nothing, for free... Yet all it takes is the exact opposite, all it takes for men is to become men again...
Eh, don't get me going...