And then partner leaves you from anger at your self-centered approach to existence.

Not speaking from experience - I just have three kids, do what I can to take care of them despite being the primary breadwinner, and can't imagine the resentment that must stack up if you just drop all the sleepless nights and weekends of kid-juggling on your partner.

Never mind that you'll lose 7/8ths of the whole point of having kids with this approach, too.