That's not totally correct.
What we read is that at initial rollout, some functions will be available in US only; but will be available later in other countries. Delay may depend on compliance issues with local regulations (Europe and China notably) or the fact that it is not yet localized.
Get details here.
https://www.macrumors.com/2024/06/21/apple-intelligence-europe-delay/
https://www.macrumors.com/how-to/enable-apple-intelligence-outside-us/
PS: not sure it is a strong enough reason for emigration… 😉
Topic:
Machine Learning & AI
SubTopic:
Apple Intelligence