You Russians have a serious problem understanding the notion of “borders”, don’t you?
And, when we're not invading, and for far less valid reasons than Russians have gone into Ukraine, we're trying to foment more revolutions in countries like Georgia and Hungary.
The war in Ukraine is completely the result of our meddling in the country going back to 2014. We setoff a civil war by fomenting in an illegal coup. We trained, funded and enabled Ukrainian nationalists and neo-Nazis to persecute and kill the ethnic Russian population and to cutoff Russian from a naval base in had in Crimea since 1783. We armed Ukraine with offensive weapons and teased NATO membership for it. We we were running biolabs with deadly pathogens in them in Ukraine. We encouraged Ukraine not to honor the Minsk Accords that it signed that would have brought peace to Ukraine and kept Lugansk and Donetsk part of the country.
In short, we did everything we could to make this proxy war happen.