It has gone so bad in many countries that companies cannot even fire people (due to headache that comes with it) and have to ask employees to rather resign via some way (WFO)
Is bothering people who care about efficiency more important than the basic rights of those that dont?
Put yourself into the other shoes: You want to start a business, you have limited resources, you want to hire people who can help you in exchange for compensation and these people want that compensation, but the laws where you live make it nearly impossible to fire anyone you hire. What will you do? Be realistic, looking at your actual finances and human self.interest as objectively as you can.
Businesses are the private organizational expression of private people (or groups) using their personal resources to try to earn something more, improve their economic well-being. Saddling them with the ideological notion of being make-work resources just because they started something of their own that required employees for fixed aims is absurd.
It also promotes informality and labor black markets, in which people who prefer actually getting a job and money for living expenses to "enjoying worker protection" in the abstract but having it basically impossible to get hired legally in practice. So they accept being hired under the table. Now that they're working informally, as if they were illegal immigrants, they're even more open to abuse than they would have been if they could just get hired and fired easily, but at least formally, and under at least basic rules of minimum wage and labor law.
A simple analogy would be you hiring a gardener to trim your hedges and mow your lawn and then being forced to offer him work any time he asks for it from then on. I doubt you'd accept this. In fact, I doubt you'd even hire gardeners ever again.
I am in the other shoes, and have been for decades, like my parents were before me. I never hire people with the expectation of firing them. If your having to fire a lot of people through the course of doing business you're hiring the wrong people and need to revise your hiring practices. This is your failure not societies.
>"A simple analogy would be you hiring a gardener to trim your hedges and mow your lawn and then being forced to offer him work any time he asks for it from then on. I doubt you'd accept this. In fact, I doubt you'd even hire gardeners ever again."
This is a horrible analogy. Nobody hires their gardener as an employee. It's the perfect example of the opposite. Given the difficult to fire people hypothetical environment you propose companies would be well served to hire their labor as contractors. This is very common. And a gardener is the perfect example.
A fair analogy would be a pilot who invests years of their life and lots of money to be trained in a certain profession. There should be protections for people like that.