I remember the US attacking Iraq, Iran, Afganistan. I also rememmber Russia backing South Ossetia and Abkhazia to be independent from Georgia. Another thing in my memory is how Islamist fighters from Chechnya infiltrated Russia's Dagestan region, declaring it an independent state and calling for holy war. Either way, Russia has not done anything, the US has not done before.
Ukraine is oppressing their Russian-Speaking people, while inviting Russian enemy - NATO - to it's doorstep. Also, over 90% of Crimeans are basically Russians living in Ukraine, they simple "came home".
As far as Russia not being relevant on the world map: Europe is having one of the biggest inflations in its history, governments are calling for saving electricity and gas. Gas literally costs double now and Russia has not even closed the pipeline yet. Europe will last 2 years max. not being friends with Russia, then West Europeans will gladly give up Ukraine and even Lithuania and Poland if needed, just so they can live their lifes how they used to before.
And especially for you, once again:
"If I find out where you live, show up right by your property and taunt you, I'm sure eventually you will come out with a baseball bat or a gun, which will make you an "aggressor" :)