Rouge state? Do you mean like invading sovereign nations? Without being provoked? Without declaring war prior to invasion? And ultimately killing thousands of civilians in the process?
Iraq and Afghanistan - who got super power'ed twice - would certainly agree with you. But their most recent concerns are not Russia.
p.s. The USA has quite a history of election meddling as well.
Absolutely, election meddling and invasions are terrible and should be punished no matter who does them. Currently Russia seems to be the primary perpetrator, so they are the ones that we should be discussing sanctions for. (They also did the most recent invasion, in Crimea). All this "but the US also!" is exactly the kind of whataboutism that Glavset trolls routinely engage in, and it's not constructive at all. Yes, the US plays dirty, as does China, but that's no reason to let Russia do so too.
So you understand every state uses similar dirty tools of power. Where do you start changing that? There is no upside for any big state to unilaterally respect and build international law / UN while others take advantage. It is a mere toothless idea now, these states don't have much incentive to follow it.
Iraq and Afghanistan - who got super power'ed twice - would certainly agree with you. But their most recent concerns are not Russia.
p.s. The USA has quite a history of election meddling as well.