Interesting conjecture, and while I agree that the Me-262 was a fine aircraft, and would have extended the war in Europe, keep in mind that the first prototypes of Kelly Johnson's P-80 were already flying by late 1944 and would have made short work of a 262. Likewise, the British were also flying the Gloster Meteor, and while it was primarily detailed to combat the V-1's falling on England, I suspect it would have been employed against Germany had the 262 been fielded with capable pilots and adequate fuel stores to become a major problem for the Allies.
The 262 had a 5:1 kill ratio and only 200 saw combat. Over 1400 were built good thing the Germans could not train pilots and fuel them. Kelly is one of my heroes, P-80 against 262 would be interesting and I bet those tests were run at Edwards after the war.
Sorry for the delay. The P-80 was SLOW by mid-1940’s jet standards, because it only had one engine. Thats why the P-80 was not introduced into the war.. it was even slower than the Mustang by some 150 mph. American jet (powerplant) technology did not measure up to either the British or Germans. Only after German jets were shipped back to the US and reversed engineered did jet power become a true reality.