Typical .gov will go after anyone and everyone they can for "trying to do business with US Citizens."
https://www.coindesk.com/texas-hits-crypto-investment-firm-over-alleged-fraud/ is one recent example.
Exactly why a properly launched ico like EOS did not allow US citizens to purchase.
Also see FATCA which requires the international banking community to abide by certain rules to maintain their ability to do business within the USA. https://en.wikipedia.org/wiki/Foreign_Account_Tax_Compliance_Act
That's crazy!
It reminds me of how I always laugh when services like Airbnb force you to state if you're in anyway a US citizen or related to a US tax payer. But I guess it's not so funny if you actually are a US citizen and can be financially hunted throughout the world.
So from what you write it's seems like the citizens of the land of the free have to cross the pond with their projects to set them free. And not deal with anything related to Americans at all?
Many banks abroad will refuse to open accounts to US citizens. Not exactly the land of the free, however still free compared to most places.