So if you're poor and assuming it's due to your partner demanding some family responsibilities from you then you've to bethink yourself and narrative because that's BS. I wouldn't want to blame anybody for my financial state I just know I need to work harder and smarter.
Those rich fathers who have many kids and wives are not average people, they were born from rich parents, hence they have so many opportunities to try.
Just use your logic, if you earn $2K per month and when you're single you only need to spend $500, do you think you will spend $500 when you have wife and baby? no, you might need to spend $2K and your wife will keep saying that's not enough.
It will push you to work harder and smarter, but your wife will keep asking for more and more. You might think she save your money and use it for investment, however she actually use it for self care and traveling.
Work harder and smarter aren't enough though, resource have limit which mean there will be a limit for you to make money.
I don't have an intention to blame other people, but I speak the truth.