Yes they hired 100k people

And let go of 10k of them

The market changed, interest rates went up in the fastest pace ever

What aren't you understanding , amazon is a company, they do what is best for them

Cost of money get very expensive, the market changed, investors don't want to see divisions that are losing billions of dollars per year continue to be funded

This isn't complicated.

Amazon has a fiduciary responsibility to it's investors (lol, but it's true )

It sucks that this happened, but it's a symptom of the entrenched inflation the fed is trying to fight after blasting out helicopter money for 2 years after a decade of zirp .... It's Infidtry wide. Google, fb (fb still makes a metric shit ton of money), etc etc

Maybe these concepts are over your head. Or maybe you should move to France or one of the other countries where it's nearly impossible to fire someone, but it's also extremely difficult to get a decent salary because once your hired you can't fire them easily.