We are paying taxes to Berlin! They run the EU and we pay them for doing so.
You are quite right though that the US's colossal industrial capacity was immensely important in determining the outcome of the war.
The BEF was a ****. Tobruk was a ****. Malaya/Singapore was a ****. The Battle of Britain was a draw. Bomber Command's Battle of Berlin was a failure. In March '44 they had to call it Quits when the loss rate reached a totally unsustainable 12% per night.
The Septics, gawd bless their cotton socks, really did make a difference. Operation Overlord would/could never happen without them.
Churchill's "soft underbelly" idea was bonkers. Pissing around in Greece was bonkers too. He was obsessed with keeping the British Empire going despite the fact that it was **** with the fall of Singapore. Suez was the British Empire's carotid artery and he was desperate to protect it at all costs.
He persuaded FDR to invade North Africa, fully in the knowledge that Libya would be lost to the US fascist Empire. Actually, unexpectedly, the Septics got their arses well and truly kicked at Kasserene by wee Rommel. They got their arses kicked by the Libyan people too, years later. The fascist Septic Empire's biggest airbase in the whole of Africa was Wheelus. They've never forgiven the Libyan people for that. They never will.