All german parties except of the CDU/CSU (which are "sister parties"), led by the leftists, who were created from the remaining parts of the totalitarian SED that governed the GDR, and, out of this "tradition", have a very anti-US and pro-russia position
Are you serious? That is ridiculous. The FDP (liberal party), the SPD (social democrats) and the Green Party are not pro-Russians. None of the parties are pro Russian except the extreme left (Die Linke) and the extreme right (NPD, AfD).
There is some pro-Russian sentiment among many former citizens of the German Democratic Republic (East Germany), but the vast majority of Germans, especially in West Germany, are very pro USA. Most Germans were actually quite let down by recent revelations that the US does not consider Germany one of its closest allies, at least in terms of intelligence cooperation, as the general perception in Germany has been that it is indeed one of the closest allies.
The presidency of GW Bush has hurt public perception of the US in Germany a lot, but that is not singular to Germany, this has been the case in almost the entire world.
Still I would estimate that if forced to choose a side, 80% of Germans would favor partnership with the US over Russia.
Like Bush before him, Putin seems like he is doing all he can to hurt the Russian reputation accross the globe, but especially in Europe.