If you don't have family that can help you and you grew up eating out of soup kitchens, you're going to have a very different attitude to the prospect of job loss (even if you're "making decent money" at one of these "woke companies") than someone who comes from money and didn't have these issues growing up.
You're less likely to take risks, and you're more likely to pursue more secure careers (tech being a good one of late).
Now that tech is not looking so safe anymore, of course there are a lot of people who are having full on crises.
Dismissing those people as "being made of anxiety" fails to acknowledge the factors that caused the situation in the first place. Sure, someone with a wealthy family isn't freaking out right now, and they're probably less anxious in general. They have good reason to not care about maybe getting laid off, just as the people who are quite worried about it have good reasons to be anxious about getting laid off