Why Does There Have to Be a Female Lead? Some Male Leads Should Have No CP

Looking for books like Who Wants to Become a God? Didn't You All Force Me Into This? Some male leads are written as completely emotionless, but the author insists on giving them a female lead. Or the female lead is so weak that she's always holding the male lead back or becoming his Achilles' heel. What I hate most is when every time the female lead runs into