Germany and strategic sovereignty… Looking at gas pipes, they have an alternative understanding of sovereignty.
That being said, I do agree that paying 5.5bn of taxpayers money to foreign tech is silly. Such money can be easily used in investing local companies which will provide more employement and ROI to Germany.
And for nuclear, IMO „nuclear phobia“ was financed from the same pockets as sea pipeline.
Not to mention in the case of Germany, Russia's army would be obliterated by NATO if the warfare was purely conventional.
Same for China. It was contained for some time. Then West propped up China via trade and now China is starting to flex it's muscles.