[orisho]

I believe it's because if you are easily replaceable, then screwing up means you're not worth the trouble. If you aren't easily replaceable (whether it's because you have demonstrated you're a good employee or you're working a high-demand role), you are worth the trouble and you'll get more chances. There are other reasons too, such as jurisdictions where suing after being laid off is more common, which makes more chances, PIP and severance packages more likely.

[pixl97]

>I believe it's because if you are easily replaceable, then screwing up means you're not worth the trouble.

These ideas work great when you have a large/growing labor population, we're seeing it start to fall apart in a tight/shrinking labor population. "nobody wants to work" is the drum beat of the employers that used to burn employes.

[rmah]

Well, then they're not easily replaceable. Which implies those workers have other options. And thus employers that treat workers worse than other employers will see workers leave and/or find it harder or more expensive to hire. So it all works out.