And I say so because I know the numbers. LL delivered 6.2 million tons of American food to the UK. Enough to feed roughly 4.5 million Britons from mid 1941 to mid 1945. Considered that even Australia received LL food OTL, the Dominions could supply at best 10-20% of this number. That means the British Isles are slowly starved into compromise without LL. And this is "just" food. The absence of iron ore, steel, fuel, coal, aluminum, ect would be equally disastrous. 30 million Australians, Canadians, South Africans and New Zealanders simply can't compensate for the absence of 130 million Americans! It is baffling that for some this stands to discussion. The Dominions OTL were allready at maximum. To suggest they could have done much more is absurd.
WW2 required a titanic effort of the "Big Three" in order to win and it wasnt an easy victory. Yet if we remove the most important player that supplied 1/3 of this coalitions population and half its industrial/agricultural capacity some people still claim that the "big two" still win, it just takes a few days longer. This claim shows such a level of ignorance about this time period, LL especially, that its baffling.
No LL for Britain? No problem! The Dominions can jump in! Doesnt matter that the distance to South Africa is twice and to Australia/New Zeeland 4-5 times greater than the Atlantic route! The 30 million people of the Dominions will produce as much food/products as the 130 million Americans, im sure of it! After all OTL the Dominions were only at 10% of their maximum capacity! The British Chief of Staffs concluding that they couldnt continue the war without US support were clearly out of their minds!
Not enough food or resources? Oh dont be silly, the British dont need such things! Even if they cant do anything they just have to hold out untill the mighty Soviet Union defeats Germany! The Soviets dont need food or resources as well! Remember the famine they had in 1946/47 that killed between 1-2 million people OTL? Well without LL this famine will hapen in 1943/44, but the Soviets will still prevail!
Despite the absence of 50% of "their" aluminium, 40% of "their" copper, 8000 LL tractors, 12 000 LL tanks, 25 000 LL aircraft, 400 000 trucks and jeeps, despite Zhukov,Khrushchev and even Stalin admitting that without LL they would have been screwed, the Soviet economy will never ever collapse and the Soviets will never ever compromise; even when their only "ally" is just sitting around letting them do 99% of all the work.