It's the pragmatic view. A sex strike, for instance, would only have a practical effect in altering men's behavior as a group if a certain critical mass is achieved. Acknowledging that most women will not be on board with that, and barring some major change motivating more women to take such action, achieving that critical mass is astronomically unlikely, then the action only makes sense if it personally benefits you (as a woman might decide is the case if she lives in a place with draconian abortion laws and can't realistically travel for one).

Now, if women decided to take a collective action that would actually have a meaningful chance of success, such as agitating for better protections to keep porn away from kids, that is extremely worthwhile even if she personally has no kids or nieces who would benefit from boys being less porn-saturated.