The problem with this theory is this idea that somehow an EU-aligned Ukraine represents a threat to Russia or Russian energy. It doesn’t. All the foreign interference in the world is irrelevant.
The truth of the matter is that Putin thought that gas supplies to Europe were a sufficient bargaining chip to prevent the EU and an in-fighting United States (thanks China/Russia/Iran, appreciate the taste of our own medicine) from acting while he took over a resource rich and to Putin, historically important Ukraine. Putin tells you this. He wrote about it and has talked about it endlessly. There is no mystery here. No grand “foreign interference” conspiracy. The US has no reason to care if Russia supplies energy to Europe except to the extent that Russia then goes on to cause chaos and trouble elsewhere. This is evident by the actions of the US which have been appeasement after appeasement.