This simply makes official an existing US slide towards authoritarianism that has been on going for a long period of time.
First, we have the development of a plutocratic oligarchy, which most people would agree is already accomplished with the 1% owning practically everything, including the media, politicians, etc.
Second, we see the gradual overthrow of civil rights, justified by "national security." Homeland Security, China Initiative, Tik Tok Ban, etc. etc. Which is 70% done and just needs to see a suspension of Constitutional rights under martial law.
Third, a legal loop hole is created to allow the executive leaders of the country to take absolute power. This is what is happening right now as the president of the US is given immunity to do whatever they want by a Supreme Court loaded with Republican loyalists that was neither voted on nor approved by the public. Because the public would never vote for such a decision directly, they took it through a path where the public gets no say.
So it was with the fall of the Weimar Republic, or the Roman Republic, for that matter. And so it will be with the fall of US "democracy" that has been on going for decades. Hitler, it must be remembered, was not voted into absolute power, but seized it through the Enabling Act that he pushed through by way of voter intimidation, banning opposition parties from effectively attending the vote, and using the fundamental legal loop hole of a representative democracy where the representatives could make decisions to change the very constitution of the nation - to transform it into a dictatorship - without any public approval.
This is, by far, not the first move in the US's slide into authoritarianism, but it could be one for the history books.