> Any company building this kind of tech should have a separate shell headquarters on some low regulation island country.

Like where? How about Cuba? Where Guantanamo is, where we put terrorists because we don't want them to be subject to US laws (or more specifically, we don't want ourselves to be subject to those laws when we are dealing with said terrorists). How about no.

International law has only as much power as the biggest military willing to enforce it. Hiding on some little island is not at all a good strategy for trying to evade the US government.