I think its got everything to do with a poxy country leaving the EU, its weakened the strength and decision making and allowed one poxy country to be played against 27 former “teammates”. Just as its everything to do with Russia’s impact on elections in both the US and UK and elsewhere in the world.
Whilst the West has been dicking about, Putin has strengthened ties with Xi in China and Kim Jong-un and other Dictators, sanctions haven’t really bothered him (or the other 2) - its a fight now over Democracies and Despots and Putin has been preparing for this for years, he can’t be allowed to win, unfortunately this will be military rather than economic means, we are in a very deadly situation.