Ukraine will soon receive German "Gepard" anti-air tanks.
It was in (West-)German service from 1976 to 2012 and can shred all kinds of planes, helicopters and drones. It would also be devastating against infantry and non-armored vehicles. Tanks probably can't be destroyed, but severly damaged and rendered ineffective by it if the need arises. Possible problems are ammo availability, it needs to be reloaded from the outside and it's unclear how effectively it can be used by Ukrainians with limited training and with Russians possibly being able to detect its radar.
These are the Russian aircrafts the Ukrainians have so far managed to shoot out of the sky. I think the Gepard will do fine against these sorts of things.
Nobody claims "over 2k tanks", Ukrainian army claims 918 destroyed Russian tanks, and factually speaking, 571 Russian tank losses are confirmed with a photo.
A full on nuclear exchange would be more devastating to Russia than to NATO. You'd have to nuke military stations spanning all over America and Europe and then there would still be US bases and nuclear submarines all over the place. On the other hand, Russia is pretty much just Moscow, Pidorburg and make half a dozen other cities and it's completely gone.
Can you even read? I was saying that your enemies are spread out all over the globe, while you just have a hand fullcities. We only need a dozen nukes to land and Russia is done for. You need many more to destroy Europe and America.
Tbh Russia also has nuclear submarines and some missile bases in the middle of nowhere. But in fact today question of devastation is more about defense systems and if they're as decayed in Russia as their army that would be a question of existense to them.