We're not talking about life, we're talking about their job.
The answer is yes: Jobs generally boil down to exchanging labor for cash. When people are willing to do a job without pay, we call it "volunteering" instead.
When you take a job at a consistently unprofitable company, you kinda have to accept that's what you signed up for. Every job at Twitter is a speculative bet that might or might not pan out. I'm not saying they're not allowed to feel bad or complain about it, but a sale followed by rapid staff cuts is what always happens to startups who don't do well enough on their own.
No, they also got the opportunity to build a system to make people miserable at scale. And, it's important to remember that, their life isn't over. They're not being marched into the ocean this afternoon, they just need to get a new job in the area, which is unlikely to be too hard.
Is that all one's life boils down to?