It's a massive speculative attack. First from Mr Saylor with Microstrategy MSTR... and now (potentially) with the United States Treasury.

Front-run the rest of the world, go all-in on Bitcoin and sell stablecoin tokens in the process.

Capitalize US debt, drive down interest rates and yields, and generate the funds plus political capital in the process to support massive Bitcoin buys on behalf of the US Treasury and federal government.

It's a massive grand strategy and speculative attack on anything not dollar-denominated.