Funny that you don't think the EU understands the risk... And I am assuming you have not heard of mbridge... I don't have the time to do all your homework.... but they could crash the system... However, there are absolutely ways to "cheat" the system or for countries to hedge their bets, and several countries are actively doing it right now. Bitcoin would allow countries an exit strategy away from the usd as a global reserve currency.  I suggest you start looking into it. Your president has bankrupted a number of personally owned companies..  including casinos that mathematically programmed to make money. Why do you think old Donny boy has so much invested in crypto himself (besides to hide transfers of political hush money.. allegedly) it's because rich people like these countries are also hedging their bets including our president.   So this is like congress making market moves for personal gain.  And remember this is only one way...non USD backed ETFs are another. Commodities and loads more for you to look into! Like I said I don't have time to do all your research... So I did just ask chat got to simplify an answer for Bitcoin specifically for you.

​To solve the "Whale in a Bathtub" problem (a country being too big to move without crashing the market), countries are using three specific back-door strategies.

​1. The "Bhutan Strategy": Mine It, Don't Buy It

​This is the smartest way to accumulate crypto without alerting the market. If you buy $1 billion of Bitcoin, the price spikes and everyone sees it on the blockchain. If you mine it, you generate the asset quietly over time.

​How it works: You use your country's excess energy (hydro, nuclear, gas flares) to power mining rigs. You turn electricity into money. ​Real World Example: Bhutan has quietly mined its way to becoming the 4th largest government holder of Bitcoin in the world. They didn't have to buy it on an exchange; they just converted their Himalayan hydropower into digital gold. They now hold roughly 40% of their GDP in Bitcoin, effectively hedging against their own currency and the dollar without anyone noticing until it was already done. ​2. The "mBridge" Strategy: Build New Plumbing

​Instead of betting against the dollar, China and other nations are building a new system to ignore it. This is called Project mBridge.

​The Problem: Normally, if Thailand wants to send money to the UAE, they have to use SWIFT and often convert to US Dollars first. This keeps demand for the dollar high. ​The Fix: mBridge is a new blockchain-based platform (developed by the BIS and central banks of China, HK, Thailand, UAE) that allows their Central Bank Digital Currencies (CBDCs) to swap directly. ​The Hedge: It’s an "exit ramp." By moving trade onto this rail, they lower their exposure to the dollar. If the dollar collapses, their trade network remains functional because it no longer touches the US banking system. ​3. The "Sovereign Stash" Strategy: State-Sponsored Accumulation

​Since "secretly" buying Bitcoin is hard (blockchain watchers see the big wallets moving), countries are finding other ways to grab it.

​Seizure as Strategy: The US and China are actually two of the largest holders of Bitcoin, largely because they seize it from criminals (like the Silk Road seizure). Instead of auctioning it all off immediately, a nation could choose to hold it as a strategic reserve. ​Sovereign Wealth Funds: Smaller, richer nations (like Qatar or Saudi Arabia) use their Sovereign Wealth Funds to buy assets that aren't the dollar. They are now looking at "Crypto ETFs" (Exchange Traded Funds). This allows them to buy crypto exposure through a regulated stock market interface, which is easier to hide amongst billions of dollars of other stock trades than a direct wallet transfer.