@zasad@. Yes, not yet at present. However, if a project is declared as a security, it would be forced to either leave the American jurisdiction or register with the US SEC for compliance which, under securities laws, might force those projects to use government approved custodians and transfer agents.
This important information is presently being left unnoticed by much of the people in the cryptospace and it will be the most damaging on the greatest innovation that decentralized ledgers and database has brought us.
I agree with you that SEC can kill any fledgling project. These are big risks, but I don't think SEC will kill Ethereum.
If the project has money, then it will be able to pay a fine in the USA and not be traded on American exchanges. And the number of US exchanges has been declining lately.
Or maybe a new type of assets will appear and crypto exchanges in the US will receive a license to trade such assets.
There are a lot of options for the development of events, but the legislation in Europe and some Asian countries treats cryptocurrencies with understanding and is not in a hurry to recognize cryptocurrencies as shares.