Indeed exactly my point!
This seems to be the axis paradigm.
Axis must choose a theatre where they want to win: Russia, London/Atlantic or the Mediterranean/Africa. I guess attacking the neutrals falls in all 3 theatres at the same time, so if the axis want to go for the neutrals they still must decide which 1 of the three above theatres they want to be winning in.
Axis should realize that against good allied opposition they can win in 1 area but expect to loose in the 2 other areas. Perhaps not immediately, but still inevitable.
For example: after a ‘successfull’ Sea Lion, Russia might not be able to immediately take Berlin, but Germany taking Moscow should be out of the question as well. Which is an allied win already if the USA can either liberate London or neutralise Japan (isolate a must, no need to conquer Tokyo).
Same story in the Pacific.
In short: The axis can win anywhere, but not everywhere (at the same time)!