Even if we accept what you're saying, that still doesn't address why this should be legal. You even say "want", so it is a choice. There's absolutely no reason that an able-bodied person of sound mind can't support themself. The state forcing another person to pay for that person's higher standard of living is absurd.
With adoption, maybe, but carrying and bearing a child has a life-altering impact on a woman's body. It's not like you can give birth and go back to the office on Monday. It takes months to recover and even after that you likely won't be at full performance like you were before the pregnancy. Common side effects like post partum depression can easily linger for years if not given time and treatment. Quality of life is also quite terrible for the last while before giving birth, not just because of changes in physical size but also the lack of sleep and what a mental impact that could easily be described as mental illness if it wouldn't coincide with pregnancy.
As a man, I seriously don't know how women do it, and how many even do it multiple times.
The notion that two people make equal sacrifices when they have a child is laughable. Of course, in a healthy relationship both parties make sacrifices, but it's impossible to equate the sacrifices they make. Perhaps it's technically possible if two women both decide to give birth from a donor father, one after the other or at the same time, abut that's absurdly rare.
Are you aware you are praising women for something any female in any species does ? Sure it is not always easy, but if a woman has children it's (unless some quite obvious reasons) because the benefits outweighs the inconveniences. This is not some heroic deed.
> The notion that two people make equal sacrifices when they have a child is laughable.
You only focus on the short-term (potential) medical issues, but if you take into account the long-term and a broader view, things average out and can even be a net benefit for women through the current laws in most western countries.
That's not a typical experience. Please don't cherry pick. Otherwise I can cherry pick the other direction and say my wife was working from the hospital bed, and that there is a video of a woman running a mile or something like that while pregnant with her second child and bearing her prior pregnancy record. I'm so tired of this emotionally driven BS.
"Common side effects like post partum depression can easily linger for years if not given time and treatment."
This is a medical disability and should be handled as such. Same for men suffering from depression or anxiety from the pressures of providing for a family.
"The notion that two people make equal sacrifices when they have a child is laughable."
It's going to vary by situation, but you clearly aren't using a systems thinking approach to see the whole picture. It seems you're stuck on the typical indoctrination material. You still haven't answered anything about the actual topic of alimony. For example, what happens when the woman didn't have a career to begin with and had no real prospects? They didn't sacrifice anything career-wise. Different people have different earning potentials. I believe it's unethical to allow a system where someone can marry and take more from someone else than they could make on their own. I also believe this applies equally.