no it can't supercharge them. Their out of control spending is predicated on currency debasement. The US government is the largest net consumer on Earth. Bitcoin rewards net producers and punishes net consumers.
Without fiscal discipline the US will be unable to hold bitcoin because it's credit globally will continue to decline. Without the sale of US treasuries the US is screwed.
If the US government openly adopted a bitcoin reserve it would be a green light for every government on Earth to do it. .