What do you consider to be Krieder's argument in this essay?

I'm going to go on a rant and say a lot of things that I might not totally mean if I thought about it harder.

Explanation:

But I feel like I need to say it, especially before I leave Harvard. And maybe I'm biased, but I've worked in other countries, so here it is: Americans don't know how to take a break. And when they do, they're still on the clock, plugged into emails so nobody misses anything or gets fired (or whatever). People are so scared to take days off that they end up retiring with a year of paid leave.