Despite the very title of the Federal Reserve Bank, it is not the national bank of the United States, but rather is a consortium of private banking members that thereby make up what is collectively known as the Federal Reserve Bank. So though, the United States once did have a national bank it does not any longer have a national bank and has not had a national bank for a considerable amount of years. This means that rather than the United States government, being in charge of its banking interests and needs, it works rather in conjunction with non-governmental banks, for better or for worse, to provide or to be of assistance for the funding that this national government needs to draw upon in order to properly function.
While there may be room for debate as to whether or not the United States should have a national bank or a consortium of banks acting as the de facto national bank, the fact of the matter is, that is already the case; so the only real question is whether or not the United States should effectively have its own national bank that handles the financial considerations of the national government, and therewith would mean the elimination of the Federal Reserve Bank.
This question should probably have been answered during the 2007-2009 national banking crisis, which would have been an opportune time to have effectively addressed this very issue, and thereby an appropriate time for the nationalization of those banks that had become systemically destabilizing to this country, and subsequently had to be rescued by the national government, performing the role as their lender of last resort, in order to bail out these irresponsible banks.
In the scheme of things, those that handle the financial affairs of national governments are powerful entities, for whoever is effectively in charge of the coin of the realm, has immense power, that can be used for the express advantage of those entities that have control of the money that is utilized in order to transact business of all sorts. Further to the point, countries have a real need for their currency to be stable, for the destabilization of currency or the inability of currency to be a source of confidence for transactions so needed, has repercussions, which are typically bad.
In an era in which this national government, pays little or no attention to the massive federal fiscal deficits that it runs on a yearly basis, a fair question to therefore ask, is whether or not this is the time for a fundamental change in regards to the coin of the realm. After all, this country has essentially been running deficits at such a massive scale, that a realistic hope for the rectification of such a deficit, has effectively been kicked down the road, forever; which has, in a perverse way, provided a real opportunity for America to reinvent itself, by taking upon itself a new and true national currency, structured in a manner in which it is created to be stable and of benefit to the people of these United States, as opposed to permitting those non-governmental banking entities that handle such currency, currently, to extract billions of dollars from the pockets of its own sovereign citizens.