The only reason Russia cares if the US does it to them is either: they want to invade the country like they did Ukraine or they are upset that other countries don’t like them and accept their influence.

The US isn’t going to directly attack Russia and Russia isn’t going to directly attack the US. MAD would kick in and no one survives that. Both countries know this.

I don’t care if Russia parka a couple of warships in Cuba. I don’t care if Russian bombers fly along the border. They’ve been doing it for decades. We’ve been doing it to them for decades. Nothing will come of it.