In the recent Ukraine crisis, we saw most of the European countries are supporting Ukraine regarding the tension with Russia. In spite of being one of the wealthiest countries in Europe Germany refused to help Ukraine with this matter and keep a soft attitude against Russia. So why is Germany out of step with its nato allies why is it throwing Ukraine under the bus? Is that business or Germany fear losing 1/3 of its energy supply?
I would say that your question is your answer about Germany losing 1/3 of their energy from Russia. Usually Germany is the more hard-lined country when it comes to the "moral" high ground. However, if you took a step back in time then you would learn of a new piece in this puzzle. The reason why there was such a hot war in Syria was to cut Russia off from providing natural gas to Germany. Instead, if Western Coalition forces would have conquered Syria then Qatar would be providing Germany with natural gas instead of Russia and the shoe would be on the other foot. In that case, it would be Russia that would be cut off from a potential income source from the EU.
Now we know how history has played out and now it is the west that has to strong arm Russia to "possibly" act. Russia, Russia, Russia is just to fearmonger over an old adversary when the Global Elite will use the "Russia" card to cause countrywide (not just US and EU but any western country) blackouts that will be blamed on Russian aggression when it was caused by the Elite themselves that control the power grids. They're doing this for depopulation and further control as they are losing it due to people waking up.