Even in the US most software jobs are lower-scale and lower-ROI than a company that can serve hundreds of millions of users from one central organization.
But for the engineers/investors in other countries... I think the EU, etc, would do well to put more barriers up for those companies to force the creation of local alternatives in those super-high-ROI areas - would drive a lot of high-profit job- and investment-growth which would lead to more of that SV-style risk-taking ecosystem. Just because one company is able, through technology, to now serve everyone in the world doesn't mean that it's economically ideal for most of the world.
The EU is the only place hiring software engineers right now. Everyone in the U.S. just keeps laying them off.
Spotify is European. Any innovative SV companies going to unseat them with sheer pluckiness? Same goes for Meta or Amazon going the other way.
China and to some degree Russia have their own ecosystems due to anti-innovative barriers they put up.
You can add Korea to this list.