Bitcoin was indirectly called a scammer currency but only to those who are blind with the reality about bitcoin,
Wrong. It was called that directly!
In 2017 Larry Fink called it an "index of money laundering"
In 2018 Nouriel Roubini called bitcoin "mother of all scams"
In 2019 Jamie Dimon called bitcoin "a fraud"
In 2021 Donald Trump said "bitcoin feels like a scam"
I'm not adding links, you can google it if you want.
the government will never gain the full access on it.
Wrong again. Government can print money and you are willing to sell your bitcoin for that money.
In theory they could buy as much bitcoin as there's on exchanges.
If they US could send 75 billion dollars to Ukraine, they could spend the same on bitcoin if they really wanted to.
What would happen if other governments also tried to get it at the same time?