Why it's logically absurd?
Simple- war is a means to an end, therefore any strategies used within a war, such as the adoption of total war, are also a means to an end. To be a means requires an end, and an end requires a justification, therefore all means require justification in the form of a justified end. Therefore, the notion of self-justifying means is logically absurd.
They seek some kind of justication for the war but not for the individual actions that follow total war strategy and then when asked about justification for these acts, they say "because war is like this and we must win by any means necessary".
Justifying individual actions as "necessary" to the war effort is still justification, assuming that both the war itself and the necessity to go to such methods have also been justified.
In other words, they already assume that "right is on their side" on the war so therefore using total war as strategy doesn't required justification and they can escape this need for justification.
That's not the same thing- if "right is on their side", then
that is the justification given.
Even though you think it only as strategy doesn't mean it cannot be ideology.
Yes, it does. A strategy is a means to an end, an ideology
is an end. Therefore, strategy can be used to fulfill an ideology, but it may not be one in itself.
People already think that it is "right" when they describe why it was used. And if some person dares to say it's "wrong", then it's usually said that "war is like that, blah blah".
As I've said, the war itself requires justification. If the war is used to justify further actions, that is a form of justification.
...like I already mentioned earlier (maybe even numerous times) it creates vicious circle where it is the motive, the alibi and the murder weapon for any acts people do.
But even then, the justification given is revenge, war is simply the means of attaining that. It is never the aim in itself; no-one wages war for the sake of war.
And just like spirit of profit in capitalism people use it as ideology for justication for itself.
Who? Name one political or military entity that has ever viewed war as self-justifying.
It can turn into murderous political tool especially when linked to propaganda very closely being an ideology that gives meaning to the things are being done.
So can a gun. But a gun cannot be an ideology. A gun is merely a tool, as is war.