The entire feminist mindset is deeply anti-fertility and remarkably shallow in certain aspects.
Consider 'average' men to be at the level of a sub-human, good only for work, conversation, entertainment, and some other practical use.
Only award the top 10-1% of men in looks/wealth full personhood.
Devalue family/motherhood over independence and financial goals, use up all of the 20s for 'career'. Treat women who don't have a career or make babies before the age of 28 as some kind of loser.
Delay childbirth until the final years. This is combined with a high overvaluation of one's attractiveness and an inflated sense of entitlement.
All of this is a recipe for lower fertility, higher separation rates.