Corporate culture spent the last fifty years convincing the working public that it was important to identify with your job, career, and most importantly, your employer. That's how you get the most out of a worker. If they identify themselves as - just as examples - "parent" or "spouse" first, those priorities can get in the way of their value creation for you.
The employer can, of course, drop you as an employee pretty much at-will. You'll be left with shame, disillusionment, and potential financial setbacks, but they'll have accumulated the value from your best efforts.
But that is basically the minimum set of consequences for any homemaker or non-breadwinner when a marriage fails.
Think about women through the centuries, who’ve been faced with basically homelessness and poverty, and the full responsibility to all their children, if they divorced or separated.
And then it becomes crystal clear why many people cling to suboptimal and abusive relationships, because really, we need one another.
There's also an increase in the number of women who are able to independently support themselves.
People are also less likely to get married now for that exact reason.
If there were some sort of alimony for employment, even if just for a year, and a public health insurance option to fall back on, you probably don't see that much outrage from the people who have lost their jobs. But then, you'd also, at least in the minds of certain employers, see less willingness on the behalf of employees to throw their whole lives into the production of value for the business, and I think that's part of why you don't see guaranteed severance and public health insurance in the US.