Nothing ironic about the Russian reaction to current events in Ukraine. Once Biden was in power, the war like rhetoric from Kiev increased. Their much anticipated spring offensive to retake Donbas. Zelensky signed a decree which defacto declared war on Russia and it is to this fact that Russia is responding.
In addition to this, such a buildup, would hopefully make Kiev think again, about their current misadventure and save countless lives, if war can be avoided.