The game is making young men who play it feel a tiny tinge of the protective instinct they'd get from fatherhood, and is causing them to openly discuss how much they liked the feeling of being a dad, even simulated. The Left hates the idea of men waking up the instinct of wanting to be fathers, because if young men get a taste of that, they'll realize the Left has made actually being a father a nightmare/impossible via feminism turning women into whores and spiteful cunts, making neighborhoods unsafe with illegals and negros, stealing their futures from them via inflated housing prices and no jobs from H1-Bs, and so on. If young men start thinking 'yeah..this dad thing feels pretty good, I think I want to do that for real', they'll look around and realize Leftism made it impossible, and they just might start tearing down leftism.

The Left can't accomplish anything they intend if the Christian nuclear family is intact and strong, so the past century has been spent utterly destroying every foundation it stood on. And anything that risks the younger generations noticing this and feeling the urge to fix it must be opposed.