A major part of the opposition derives from female ignorance of the work it takes for a man to be successful in the sexual market. In order to succeed in oversaturated market, a man needs to learn:
-how to dress
-how to talk
-how to text
-where to bring a date
-how to escalate
-how to fuck
Those skills aren't developed without conscious effort. Each one is a lesson in itself, but all of them are necessary to complete the transition from first meeting to bedroom (and to keep her around afterword). These game skills mentioned above are in addition to the other markers of male status, such as a defined body, wealth, or micro-fame, all of which require effort as well.
The clip below, from the 40-Year-Old Virgin, involves the titular virgin learning just one of these necessary game skills, in this case learning how to maximize his physical appearance (Few men will even have a critical conversation about improving one aspect of their game, and even fewer will follow up on the advice).
You think this was an accident?
To many women, it
should be an accident. Because a woman's value was decided by accidental factors beyond her control, i.e. her genetics.
Blessed with good genetics, an attractive girl could dress like a slob, talk like an idiot, send rambling texts and still get sex and male attention (and, in fact, many do follow this plan to success in America by minimizing their appearance with ugly hair and tattoos, talking constantly about their jobs and favorite TV shows, and sending text messages written on a middle-school level, provided they meet a certain standard of looks). Crucially, they cannot achieve a fulfilling relationship, but, in their minds, that's the man's fault somehow. And an ugly girl who's developed a pleasant personality still could not outcompete a better-looking girl. A woman's access to sex and validation doesn't really depend on any skill. For her, self-improvement is unnecessary.
So she thinks it's only fair that male value should be determined by similar accidental factors. That men should follow the same rules as women in the sexual market. But value is created differently for men and women because men and women are different. So when a man tries to better his lot in life through a program of self-improvement, she considers it unnecessary for him, and that it's odd that he's even trying.