Unless I've misunderstood, this seems to assume two things. The first is that the tories are already running the economy according to the principles of MMT, whilst pretending to be old fashioned Keynsian monetarists, the better to keep themselves at the top of the tree, and the rest of us scrabbling around in the undergrowth. The other is that only the tories, and the current government of this country, are doing so, as opposed to every other sovereign country in the world. I think that's what you might be saying?
I know you now quote it as irrefutable fact, (despite evidently having had your own doubts along the way) but as far as I understand it, MMT remains what it says on the tin, and hasn't been tested in the real world economy?
My only point was that the idea that government spending comes from tax is a myth.
However, I’m not sure if this is the point of contention.
First of all I have to say that any idea that current government spending is based on anything but solid Monetarist ideology is indeed, I’m afraid, a misunderstanding.
Government itself fully understands that it’s spending is not constrained by an income from taxation, we know this because when it comes to war, vanity projects or bungs, government spending is not conditional. That government spends without constraint when it sees fit, but chooses to impose constraints when it comes to public spending is a matter of political choice.
That government spending on public projects has been forced into the headlines by Covid only proves that government has, and always has had, the capacity to produce money when required. The fact that our government chooses to attach a bill to the taxpayer for producing money when it comes to public spending that same political choice, a means to suppress demand for better public services. It is not an economic necessity.
To your second point then yes, any government such as ours that says that government spending is dependant on an income from taxation is perpetuating the same myth.
Finally, I am not presenting the idea that tax does not fund our government spending as irrefutable fact, I am happy to argue my case as best I can, but I have yet to hear a convincing argument that our government spending is indeed constrained by an income from tax