Well, wait, it is not like if Germany/Italy fail to take and hold significant portions of North America they are doomed to a quick death. In order to even threaten North America both England and America have to be either fleetless on the Atlantic board or with such small fleet numbers as to be insignificant.
That alone allows them a great deal of relief on that side of the map. Sure, N. America may be barricaded to such an extent that ever taking Washington is a pipe dream, but all that “stuff” are wasted units if you do not attack. They cannot hurt you, they cannot threaten you, they cannot do anything to you if you ignore them. Meanwhile, the fleet you need to do these attacks is still very useful to you. You can use it to take Africa or just to prevent America and England from ever putting boats in the water, eventually allowing you to focus solely on Russia.
After all, with no destroyers in the waters, you only need 6 submarines for England and 6 for America to keep it that way. (Gotta convoy raid too, right?)
Nova Scotia 1
To cap dmg, you need 6 submarines. (Not to mention, you should easily have enough firepower - via planes and subs - to sink anything he puts in the water.)
E. USA - 20
C. USA - 12
Mexico - 1
C. Amer - 1
On the Japan end of things, going for Kill America First should net him at least 2 more Victory Cities (Hawaii and Philippines) because he’ll have to knock those out to even have a prayer of having enough cash to out-punch America.
But that too is not a lost cause if you dont do KAF because you should have enough firepower to win by VCs
Need 17 submarines to cap here, but that’s a bit ridiculous. Why would you put 102 IPC worth of submarines off the coast of America anyway? I don’t thinki you’d be able to do that AND hold back Russia.