Economics is hardly a reproducible science, but an American company has basically instant access to 350 million consumers (and workers) with no language barrier and little inter-state red tape.

It's hard to imagine that this isn't a larger differentiator than the ability to fire hundreds at will.

You would be surprised. Don’t think about it as firing but also being overly cautious. If you run a division in the EU you are overly thoughtful for every single HC you add. You don’t take risks because that HC at minimum is going to cost a year of severance. It’s a balancing act, maybe less new jobs but you get less layoffs.