- The US has been a single market for a much longer time than the EU, and the EU still is not a single market, primarily due to language barriers (Germany, France, and Italy are large enough markets to have their own localized, but slightly worse SaaS options)
- European societies are more arranged around the common good and have lower income differences between people and super-wealthy individuals by design. The US is built around being the place where talented people can make the most money out of their skills, which results in many people worldwide choosing it as the place to go to, as the talent market is a global one.
- European values tend to value making as much money as possible or competing and being the winner less, which results in people grinding less and being happy when they become rich enough to focus on other things.