HE is unbearable.
The plan is stupid and not possible in even a medium timeframe without hyperinflation and massive liquidity from the fed. We are talking tens of trillions of dollars, minimum to buy 5 million coins in the next few years.
Nevermind the other countries that would as well, banks, etc...
You are talking about a ten million USD BTC, MINIMUM.
Do the math, thats a 20-40 trillion buy.
The entire economy is less than 30T.
Now, maybe over 10-15 years, or steal it, but not to buy it in a year or two or 5 even.