Well, there’s two factors you didn’t mention (I dont have the game yet, so I am working from the bits and pieces of info I gathered so far).
UK starts with 43 IPC
Germans with “only” 31, and only 5 planes.
That 43 British IPC allow you to buy a AC, and a factory (Eastern Canada). Merge your british remaining fleet with the newly built AC and put 2 Ftr’s on it. This will fend off any german aerial attack, or at least deminish the Luftwaffe if Germany does decide to strike on G2.
On UK2, start building transp’s in EastCan, and land units in London. Move fleet to EastCan for defensive measures, toss in maybe another Destroyer or so.
Sure, it makes it tougher for the British, and far from impossible.
That 43 IPC opens up a lot more other options aswell. AC + BB, Cruisers, whatever…