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US might end up preventing its companies from participating in RISCV development going forward. The proposal is as stupid as you'd expect. [pdf]
(selectcommitteeontheccp.house.gov)
They could make their own RISC-V implementations, what annoys them is investing resources on it while they could just milk their already existing propietary ISAs.
That would be competing in the market without government intervention. That is against the American way!