logic

that russian armored fighting vehicles are being destroyed just means that usa and it's allies have developed and produced effective weapons against armored fighting vehicles and that someone, possibly ukraine are using those weapons 

in soviet afghanistan war russian helicopters were being destroyed likely by weapons developed and produced by usa and possibly usa's allies 

in the second usa iraq war american armored fighting vehicles that insisted on driving on roads were destroyed by what media called improvised explosive devices planted in roads 

many different countries has capability to develop and produce improvised explosive devices 

if american armored fighting vehicles have effective active protection systems against missiles and drones 

and if american armored fighting vehicles are protected by air superiority from usa or it's allies 

and if american armored fighting vehicles avoid roads were improvised explosive devices possibly could be planted 

and if american armored fighting vehicles have effective counter ied equipment 

then tanks are not dead