Listen to their state media

RT or TASS URL would improve this argument.

Here’s Solovyov

https://youtu.be/hULOZDqxv1Q?si=SAwB5ORJm5LM7vNk

It's not about Lebensraum in this case. It's restoring the glory of the USSR. And Putin has been clear on that.

"Glory", so not specifics around hypothetical land Putin aka Hitler 2.0 imagines he wants. There's no evidence for him saying anything besides … what he's literally says. This fantasy conjecture is weakening the international position on Ukraine, especially with such easy access to Russian translation tools where we can just expose this secret conspiracy of yours. He literally only talks about Ukraine, you can look into this yourself.

Or perhaps you mean "glory" in the sense of some kind of national pride and confidence in culture and nationality? I am not sure arguments against any nation seeking a sense of themselves are particularly compelling…

Look at the high level of Russian immigration into occupied Crimea.

Literally the same country

Only if you acknowledge illegal annexations.

Illegal Schmillegal, what legal avenue would you suggest Russia pursue? NATO expands eastward for decades, it’s a major defense alliance literally designed against Russia.

I don’t know what you expect? “Rules based” international order that US created for its own incentives might not be a fruitful venue of discussion.