Interesting wiki entry, did you read it? It states Kievan Rus as the epicenter of the slavic culture. This makes Ukraine the predecessor of Russia both geographically and culturally. It also makes Kiev an older center of slavic state power not Moscow.
This isn’t as simple as that, Ukraine didn’t exist back then. It’s like saying Americans are basically English.
First let's educate you on how things are actually going for the Russia military in Ukraine... Russian troops surrender in droves as Putin's army crumbles under Ukrainian onslaught RUSSIAN troops are reported to be surrendering "en masse" and fleeing from Kherson, as Ukraine's counteroffensive gathers pace. https://www.express.co.uk/news/worl...e-kherson-counteroffensive-ukraine-war-update