Are tanks obsolete because they could be destroyed? No.
Many compare Tanks to Battleships of the early 20th century and how they become obsolete. The Truth is that even as the greatest battleships were built they were not obsolete because of the potential of being sunk. They were Obsolete as the capabilities of the Battleship was matched or exceeded by the Aircraft carrier. Or be offloaded on to cheaper Cruiser, destroyer hulls.
For the tank it’s not there. The First tanks destroyed in battle were the first tanks in battle. For much the same reason we see in videos like this.
Armies who deployed tanks without support by air defenses, or Infantry. Who position them in dug in points turning them into fixed fortifications. These nurtured the tanks.
We have known since the First World War that a stuck tank is a useless tank. Stalingrad proved that if the tank is flanked it’s open to destruction. And WW2 proved bombs and rockets can kill them. Even infantry with Molotov cocktails have driven tanks from battle. Yet when properly employed with infantry support, air cover and defense a
Crew willing to use the whole of the tank as a weapon. It’s hard match.
Sure Toyota Land Cruisers have been used as fast attack vehicles offering mobility for fractions of the cost but lack the Fire power and protection.
Drones and loitering munitions can kill tanks but a flying machine can’t take and hold ground.
8x8 and tracked mobile guns might match the fire power but flee on sight of the MBT beast.
There is talk of building UGV with tank guns but isn’t that just another form of tank.