NATO/US presence in Germany gives Germany that influence to better manage independent minded countries like France without investing much in military.
Nordstream 2 is already built. but why should Germany turned it on at this point?. It makes prices higher for every one else by every one competing for LNG and gives more work for Germany engineering globally. the whole point is to make world depended on German engineering faster. Also that tremendous wealth creation of higher prices also flows back directly and indirectly to Germany. Germany knows that Russians will not invest on same scale as Arabs inside Germanic system nor Russians will supply labor on same scale as Turkey.
conventional thinking does not work.