[oblio]

You're missing the bigger picture.

US startups <<grow>> in the US, the huge single market with a single language, then once they're big and can tackle the bureaucracy in order to get to the huge chunks of cash also available in Europe, they <<move>> into the EU.

A not-so-huge startup by US standards can have hundreds of millions of dollars very early in its life, allowing it to switch to international expansion, while most of the equivalent EU startup would probably raise tens of millions by the same stage, if they're lucky.