Britain should not have declared war on Germany, 1939

Hitler invaded Poland having promised not to, and attacked Russia having engineered the Molotov-Ribbentrop pact a few years earlier. This discussion is pointless.

hopefully Hitler wouldn't have had any interest in Western Europe and it would have worked out well

And back to the OP's point, you make the empire sound like Britain's main priority. Whereas, you know, with holocausts and war crimes going on, I think I'd have rather less selfish, more moral priorities.

Better idea: Invade the USSR in 1918.

(1) Hitler had expressed a desire not to fight Britain and France.
.

We should have let the Germans eat up the East. Meanwhile, we strengthen our garrisons in the colonies, beat off the Japanese as a result, and maintain the Empire. The US goes into obscurity or whatever as the depression destroys their economy. Germany beats the Soviets and makes satellite states out of Eastern Europe.

Meanwhile, Britain does the same and makes satellite states out of Western Europe and other countries around the globe that aren't part of her Empire already. Britain and Germany fight a Great Game over South America in the 50s. Both develop the atom bomb and there is a cold war between the British Empire and Nazi Germany. The Nazi Empire breaks down in the early 90s like the Soviet one did, much for the same reasons, and Britain and her Empire are left as the world superpowers (since both Britain and Germany see to it that China never proper industrialises.)

Thoughts?

It's probably true then. Hitler seems like the kind of guy I could trust.

We did invade Russia in 1918.

World trade would collapse, and the pacific war would still happen. Japan and Germany would still be butt buddies. The USA wouldn't give us any of that much-needed help in the pacific.
Germany might attack the UK instead at a later date, as Hitler is more concerned about an early death and UK-USA-USSR trade. Etc.

Hitler was quite an Anglophile actually, and as the English are a Germanic ethnicity he'd have wanted us to prosper and spread.

We should have let the Germans eat up the East. Meanwhile, we strengthen our garrisons in the colonies, beat off the Japanese as a result, and maintain the Empire. The US goes into obscurity or whatever as the depression destroys their economy. Germany beats the Soviets and makes satellite states out of Eastern Europe.

Meanwhile, Britain does the same and makes satellite states out of Western Europe and other countries around the globe that aren't part of her Empire already. Britain and Germany fight a Great Game over South America in the 50s. Both develop the atom bomb and there is a cold war between the British Empire and Nazi Germany. The Nazi Empire breaks down in the early 90s like the Soviet one did, much for the same reasons, and Britain and her Empire are left as the world superpowers (since both Britain and Germany see to it that China never proper industrialises.)

Thoughts?

I don't think anyone was banking on Hitler's good intentions. In the end he would have "suggested" a "brotherly union", if you know what I mean

We should have let the Germans eat up the East. Meanwhile, we strengthen our garrisons in the colonies, beat off the Japanese as a result, and maintain the Empire. The US goes into obscurity or whatever as the depression destroys their economy. Germany beats the Soviets and makes satellite states out of Eastern Europe.

Meanwhile, Britain does the same and makes satellite states out of Western Europe and other countries around the globe that aren't part of her Empire already. Britain and Germany fight a Great Game over South America in the 50s. Both develop the atom bomb and there is a cold war between the British Empire and Nazi Germany. The Nazi Empire breaks down in the early 90s like the Soviet one did, much for the same reasons, and Britain and her Empire are left as the world superpowers (since both Britain and Germany see to it that China never proper industrialises.)

Thoughts?