You can surely make that argument, that the entire population was supporting the military goals of the government (although I am sure many Dresden inhabitants would disagree.)
They were "supporting" such in the sense that the entire economy was mobilized on a wartime footing.
Whether the politically "supported" the end goals is a different matter, and not necessarily relevant.
But again, if you make that argument you can't then make the argument "but the people in NYC weren't at war with Islamic militants, because it was only our government attacking them."
The US government wasn't attacking Al Qaeda, or waging war on Islam, or whatever, back in 2001. There was no state of war, and there was no corresponding total mobilization of the economy for such. Even once the wars broke out, they were not total wars - rather the opposite.
And if they achieve their goals, they are by your definition, justified - as long as they call it "total war."
Emphatically not. The goals in question have to, themselves, be justifiable. Aggression does not qualify. And you can't just call something a total war. It has to actually
be a total war - meaning total mobilization of the entire country into the war effort.
Al Qaeda had declared war on us,
But an actual state of war did not exist, as the USA was not waging war.
and we've been using the term "war on terror" to describe our actions against Al Qaeda even back in 2000, after the attack on the US Cole.
We didn't take any (military) actions against Al Qaeda in 2000 after the US Cole, nor can I find any reference to the phrase "war on terror" from that period.
We told the world we were at war with them; we can't say "well we didn't really mean it" after we dislike an action they take.
I do not see where we told anyone we were at war with them. This is an unsupported supposition on your part.
But even if you insist on calling it "war," I see no grounds for labelling whatever state of relations existed at the time as "total war." You are just quibbling here, and not attempting a material rebuttal of my position.
And if the US had dropped nuclear bombs on civilians because there was no other way to win a war, you'd have a good point with the "total war" thing.
There is no requirement that there be no other possible means. It's simply a question of how the expected benefits compare to the expected costs.
But at that point our victory was assured - we just wanted it to end faster.
Easy to say in hindsight - but even if we accept that reading, the ongoing human costs of the continuance of the war were staggering. Since you haven't even attempted to quantify the benefits of concluding the war more swiftly (and without either the USA nor USSR invading mainland Japan), let alone attempted to argue that they were out of proportion with the damage inflicted by the bombing, I'll content myself to note that you aren't even making a serious attempt at a rebuttal, there.