It works the other way too. Germany can't afford to be hard on Russia and it's no accident that Germany (and by extension the EU) has been utterly ineffectual in the Ukraine situation. And going by how much has Germany gets from Russia, I highly doubt it could be quickly made up for by imports from the US. But even then, that'd just increase our dependence on the US, which at this point has also proven itself to be totally unreliable as a partner. It would also weaken our geopolitical position vs the US as it increasingly abuses its position on the world stage. Germany should be striving for energy independence from both of these awful countries.