Look, you are right. Every point you made is correct.

However, unless there are tanks fighting tanks, all of those roles can be fulfilled by a medium tank or a light tank, which is faster, doesn't destroy roads and gets better fuel economy. For example the entire continent of Australia doesn't need a MBT because no one is ever going to land a MBT. If they do the Aussies will send sappers (combat engineers with explosives) and SAS to blow up their diesel tankage.

I misspoke when I said that a modern air force makes tanks redundant. The situation of air superiority makes them a big fucking target, and then on fire. See Gulf War 2, etc. The specific example I gave of a modern howitzer is because they are much better at "shoot and scoot" to evade attack by aircraft.

Look, you are right. Every point you made is correct.

However, unless there are tanks fighting tanks, all of those roles can be fulfilled by a medium tank or a light tank, which is faster, doesn't destroy roads and gets better fuel economy. For example the entire continent of Australia doesn't need a MBT because no one is ever going to land a MBT. If they do the Aussies will send sappers (combat engineers with explosives) and SAS to blow up their diesel tankage.

BTW, I didn't say that modern air force makes tanks redundant. I said the situation of air superiority makes them a big fucking target, and then on fire. See Gulf War 2, etc. The specific example I gave of a modern howitzer is because they are much better at "shoot and scoot" to evade attack by aircraft.