I'd say they're equivalent to Big Pharma or Big Oil - all of which have captured any regulatory agency designed to control their misbehaviors.
https://en.wikipedia.org/wiki/Eisenhower%27s_farewell_addres...
You can lobby all you want to cut other types of government 'pork', and you'll probably have some champions in Congress on the same page. Only the military is untouchable. It's un-American to even consider cuts in that sector.
Maybe we can say military-industrial complex? Nice, venerable, well-established phrase, notably popularized by a president during his final words as a president.
Who is banning words? At least in the US you have every right to say 'deep state' all you want but it probably doesn't mean in other people's minds what you might want anymore. I mean, it's the way of language evolution that when a phrase picks up a much different and negative connotation from what it had previously people stop using it.