It is relative. Russia will not be this weak if Trump cuts a deal and frankly the Poles alone, a well trained modern army fully equipped, would probably be enough but the Baltics, Finland and Sweden would come whether invited or not. France gives the nuclear umbrella. 
The US will never give support and is ready to hit Europe with 25% tariffs. This is about choices in today's world and where the EU has limited choices it is clear that some choices are better than others. 
BTW do not wait for Germany