Remember that even when flying airways VFR, the restricted areas are still applicable. It is only the IFR flights than can pass through with the ACC
What the hell are you talking about, DFC?
Look at the charts. It's obvious that the military airspace has been drafted to avoid the routes in question. Whether you fly them VFR or IFR is completely irrelevant.
You are getting confused with some specific spots, where an IFR approach is permitted but a VFR one isn't, and there is some nuclear power station TRA in proximity.
As regards Class A, I used the words
in general, in the correct context for the original question.
One assumes the pilot will look at the chart, not plan the route on pprune