I proposed a more likely scenario awhile back:
The US Gov’t adopts a Bitcoin Strategic Reserve.
Then later, declares Bitcoin an asset of National Security.
Therefore no Developers will be allowed to work on it who aren’t “Certified” by the US Gov’t.
The US will then lobby and incentivize other major nations to sign-on to a multi-national “Bitcoin Developer Protocol” - protecting/preventing Bitcoin from any other nation-state soft-fork.
Use of non-Certified node software will be slowly clamped-down on.