With all due respect, I believe the US doesn't treat all of its allies equally.
France, UK...of course. They are considered great allies and they are permanent members of the UN.
I understood that the US still, kinda hold some grudge towards Germany. Because of WW2.
Despite the fact, that Germans love the US. It's one of the most americanized places you'll find in Europe.
Germans recall American intervention with great love and thankfulness.
The Kessler Twins, here, said that American soldiers used to feed German civilians, after the war.
But the Nordstream question showed that Germany is not independent.
Germany doesn't have the same independence as France.
And Germany is the first industrial power in Europe, and the first economy in Europe. France is the fourth industrial power, after Italy, which is the second.
I don't think Americans have any real grudge against Germany. Or Japan, for that matter - although there might be some who do. It was a long time ago, and the perpetrators are long dead.
Our relationships with France and Britain go back to the very beginning of independence. Although over time, our interests started to align with each other as the major Atlantic powers. They were certainly powerful, and had large empires. They were definitely strong enough to be a threat to America if they chose to be, although they could also see that we were growing in strength by leaps and bounds. Yet, we weren't any threat to them either.
The rise of Germany (and to a lesser extent, the rise of Russia) made things more dicey for Britain and France. They felt like Germany might have been muscling on their action, and they pushed back - hard. Most historians seem to place the lion's share of blame on Germany for WW1 - and a good case is made for that. Or it could be the same, usual squabbles Europeans have had for centuries, but with modern, industrial weapons which bring about enormous devastation and death.
I think that may have been Americans' view after that war: "This is what Europeans do. They squabble and fight all the time, so if they want to fight, let 'em fight. What's it to us?"