So in other words, you want the US to use taxpayer money to buy enough Bitcoin in order to manipulate the price of Bitcoin--in the same way the US has a strategic reserve of oil that they sell off when the price of gas gets too high.
Please do not be so dramat, the US is using ETFs to do what you are assuming. It has been already done and it is working for them.
ETFs are bought by individual US citizens voluntarily. The reserve is about using compelled taxpayer money to pump the price of Bitcoin artificially. Completely different.
In other words manipulate bitcoin price to the US government favour if possible.
Knowing the US government already they will even tax bitcoin users more for using bitcoin.
Trump brought artificial pump that I don't think will hold for long and his promises for me doesn't change anything except folks who never trusted bitcoin in the first place or those who saw bitcoin as a Ponzi scheme till now, hence take it a bit serious just for a temporary benefit of the bullish season and the guarantee they expect from Trumps promises.