Jaja, are you suggesting that Putin would spare Ukrainians just because they are fellow Slavic nation?
It is actually just the opposite.
Russians hate when someone stands up to their bullying, and they hate it even more when another Slavic nation dares to stand up to them.
Look up what Stalin did to Ukrainians in 1932-33.
Or to Poles. Katyn. Warsaw Uprising. Not to mention that Russians actually attacked Poland side by side with Hitler.
And yes I know it was Soviet Union back then, not Russia, and I also know that Jughashvili was Georgian, not Russian.
But Soviet Union was actually Russia that swallowed the other countries into union more or less against their will.
I am born and raised Czech, so Slav too. My native country was occupied by Russians for 21 years. Yes, I know, Soviet Union. But we always called them Russians. And, while we don’t have as long and bitter history with Russia as Poland and Ukraine (and many other countries) do, it was still enough. Never more.