They are in control of whatever of the State remains (in their plans), so whatever they need in State support (which in the US examples I handed you, and the southern American examples I recommended for your education, was very little) is at their command - a matter of them supporting themselves, using the State as a tool.
This would be, indeed, the consequence of a simple destruction of the state, before the creation of anarchistic structures to replace it.
Your basic problem selling that one is that you have demonstrated that you have no idea what the "constitutional order" in the US is. So when you hypothesize some "organization" controlled by some "nationalist faction", you have no idea what that "order" would allow them to do.
I do not make hypotheses about the organizational structure of the deep state, I leave this to various conspiracy theorists (which I use here not in the derogatory meaning invented by the CIA, given that the deep state has all the elements of conspiracy against the constitutional order - I simply do not consider and evaluate such theories).
So the whole thing becomes ridiculous - you lose track of who's in what faction, what the "globalists" want, where Hillary fits in and why she is particularly evil, the whole mess.
Both of them also split - into Hillary supporters and Trump supporters, CIA and Pentagon, Wall Street and FBI, I think, if I have traced your tangled weave properly.
The point being? This complexity of the deep state, together with the point that they prefer to hide, is the reason why I do not evaluate all those theories about them in any detail. I extract only some very general conclusions.
You have indeed come up with a variety of explanations for the inaccuracy of your expectations for Trump and the US Republican Party.
I'm, instead, quite surprised that my initial expectations about Trump fit quite nicely with reality. The "explanations" you mention were present from the start, justifying that my initial expectations were also quite weak.
One common feature of them all is that foreign influence - especially from Russia - plays no role whatsoever.
Of course, I do not think that propaganda fantasies of the Democrats play some role in reality - except, of course, of what those fantasies create in the political life of the US, given that many people seem to believe them, and that Trump is forced to spend a lot of his time to fight these fantasies.
The various (famously anti-Clinton) FBI investigations into his criminal foreign entanglements you described as a split in the deep State (that started before Trump's election, mind).
I mind. As well as the split in the deep state. It is not Trump who created that split, the split was a necessary prerequisite to allowing him to win elections.
Every time Trump does something typically and predictably characteristic of the fascist demagogue he quite obviously is, you discover the influence of another faction in your deep State. Now you are faced with Trump's and Putin's mutual abrogation of the treaties limiting nuclear weapons, and mutual program of expansion in their nuclear arsenals - including into war zones. There's your nationalism, isolationism, Trump style. Avoiding that kind of behavior was once your main reason for favoring Trump over Clinton, remember?
What Clinton has proposed was a no-fly zone over Syria, which would have lead to war with Russia, given that Russia would have retaliated if the US would have shot Russian planes.
A new arms race started by the US I have not considered as a serious danger. Why? Given the actual high-level corruption in the military-industrial complex, even a lot more money will not give the US a decisive advantage. Russia has, based on 10% of the US budget, reached a lot, and is now even technologically leading in quite a number of key areas (air defense, hypersound missiles, tanks). Without assuming high corruption in the US, this would have been impossible with 10%. So, a lot of money spent to improve the US military means simply a loss of a lot of money to the US, without much need to respond from the Russian side, and it would give time - the US would not start a war with Russia immediately if the decision makers hope that in a few years they will gain military superiority, they will postpone the start of the war until they succeed gaining that superiority, and, once they will never gain it, this is the best which could happen.
It would be much more dangerous if those in power would think that they have to start the big war for global power now because else it would be too late.