The guy is obviously one of Cameron's goons, and has had one too many bottles of plonk.
Actually he sorta get it. You on the other hand seems to be as dense as hardtack.
The problem with "Good Evening" is that everybody used that in the times of general Jaruzelski, whereas the phrase "conspiring with outside forces"
The crux of the matter here is not in phrases they used but in their meaning and general context. If words or a phrase describe reality accurately that in itself is a sufficient justification to use it. The only problem here is in your head not in the phrase.
And they're in trouble. Big trouble.
You are in a big trouble since you learned how to talk.