It would have helped if the US performed better in the European theatre and not having their ass saved all the time by their Allies. At Torch they were almost thrown out by the french when they invaded. In the end they managed to get to Kasserine pass, but got repelled there by the Germans, while the British just drove on to Tunis and cut of the Germans.
Then at Sicily they bungled up their part, with Patton arriving at Palermo while Montgomery had his victory parade there.
Then in Italy they wanted to do their own part, with the British and Canadians landing at Salerno, while at the same time they landed at Anzio. The British and Canadians quickly took the port, while the American never got off the beach and eventully had to be saved by the British and Canadian advance across the mainland. Then they got stuck forever at Monte Cassino and only took that when the Brazilians got into the war.
At Normandy they got stuck on the beach for quite some time again (not getting Hobarts funnies didn't really help). In the end they did their part in closing the Gap of Falaise, but the British/Canadian advance from Caen, after taking the city was the main blow.
Then when they closed up to the german border, Patton thought it would be a good idea to attack the fortress of Metz. Which wasn't such a good idea after all, it turned out to be a giant resource sink and there was no progress for three months. Meanwhile the french drove on to Strassbourg and then swung north to Saarbrücken to cut the german supplylines and effectively surrounding the German First army. The french were the first to take a german city in WW2.
The failure at Market Garden didn't help either. While the British paratroopers quickly took the bridges at Grave and Nijmegen. The American landings in Arnhem utterly failed and they got stuck in Oosterbeek and never got near the bridge. Although they had the bad luck of an SS panzer division being in their way.
Then the debacle at Wacht am Rhein, where Bastogne was quickly overrun and the Germans made it to Dinant and Namur, nearly crossing the Meuse. Just the swift diversion of Montgomerys armoured divisions stopped the german advance. And in the American sector, the best succes was made by the 2nd french armoured division, which advanced from their positions in Saarbrücken and Luxemburg (which they had only recently took) and cut of some crucial german supply lines (the french still make fun of the American surrender monkeys in december 1944, after liberating a large temporary PoW-camp in Bastogne. Ironically there were several there from the 101st divison who where in september dropped at Arnhem and liberated by XXX corps, to be redeployed at Bastogne and liberated by the french. And a large part of the American paratroopers at Normandy where also taken prisoner, so I can see where the french got the joke that standard operations from American paratroopers were to drop and then search for the nearest german to surrender to).
The American operations in the European ToW where like a comedy of errors, where everytime they had to be saved by the Brits, Canadians and French. That's not really entertaining for the American public. But there are some good french movies about the Lorraine campaign and the battle of Bastogne.