1. We have a large homgoneous market where you can build a product and it’s expected it can succeed for hundreds of millions of Americans
2. EU is the easiest second market, and another step change of hundreds of millions of customers in a somewhat unified market
3. there’s not an easy 3rd economy that replaces EUs wealth, population, and comfort with English + technology
When we piss everyone off in the EU tech company growth gets kneecapped and limited to US / Canada. Theres not an easy market to expand to without much deeper focus on that specific market and its needs, for much fewer returns.
And the EU, Canada, and anyone else who the current US administration is slighting, should absolutely be moving cash hard and fast away from the American Economy, if they want change in US policy. TACO, is about economic policy, and it's hard to imagine this administration continuing it's more unpopular global (and even local policies), if it's discovering it's not actually backed by US Mega-Corps.
Of course, there are huge unrealized opportunities to be had in economic powerhouses such as Belarus, Argentina, Russia, and whichever other member exists in the Board of Peace.