Firstly, it's a flawed vision of the roles our country and Russia play in international politics. From 2014 to 2019, it's been a position of Ukrainian powers-that-be that Ukraine is protecting the entire civilised world from the Russian menace. The problem is that no European country is ready to endorse such a position in bilateral relations with Moscow, sever diplomatic relations, and impose tougher sanctions. And this has less to do with the dependence from Russian gas or failure to understand the Ukrainian position. In the West, Russia was and remains a mighty, though troublesome, international actor with capacity to have an impact on global stability.
Beyond eloquent thought on the Kremlin's 'strategic counteroffensive' against the U.S. and the EU lie purely pragmatic considerations of cooperation - but on Russia's conditions, whereby it is recognised as an equal partner. Specifically, it was most evident in recent attempts to forge ties between the Russian-led Eurasian Economic Union and the EU, and prior to that in the idea of 'common spaces', Partnership for Modernisation, Petersburg Dialogue, and Meseberg Initiative. The list largely remained relevant even after Russia's 2008 aggression against Georgia, and there are grounds to believe that this will remain true in the foreseeable future due to other factors. The rise of China will be challenging for the West in the global balance of power. With this in mind, maintaining dialogue with Russia, China's close partner, is an essential element of a complicated game, which will run for decades.