uhhhhhhhh whaaat? this has such a limited worldview. you can form companies in any of those places regardless of your citizenship or even residency, you can start companies in the US regardless of your citizenship or residency, you can get access to the speculative fury and cheap capital on Wall Street without you or your company being domiciled in the US. All combinations are possible and you need all combinations to make that magic happen.
Choosing to do this with a US nexus for most purposes was intentional and helped this outcome.
For an example of this combination. Baidu is a chinese search engine and advertising platform.
It is incorporated in the Cayman Islands, its board members and management are several US citizens living in the US, several are Chinese. Its primary operations are in China with several subsidiaries in other countries. The shares are repackaged as foreign depository receipts to trade on the US Nasdaq. And also trades on a Hong Kong exchange as of 2021.
You only limit yourself with this kind of nationalism.
The chosen regulatory environment does affect the potential size of the business. Its a choice for the company, and the management. A low growth French or German company chooses to stay in France or Germany.