'It has stopped being profitable. That is why we have stopped going to wars and why we are leaving Afghanistan.'
No. You must read George Orwell's 1984 to understand why war is profitable and why the Marxist notion of 'creative destruction' is at play in war as they destroy buildings and bridges and then win contracts to rebuild them and as they use up stocks of weapons and then win contracts to supply new weapons.
Orwell explains how war maintains the rule of the elite and hinders the masses, just as global warming and all the other elite policies, which many Marxists support, do as well
"The primary aim of modern warfare is to use up the products of the machine without raising the general standard of living.
...
For if leisure and security were enjoyed by all alike, the great mass of human beings who are normally stupefied by poverty would become literate and would learn to think for themselves; and when once they had done this, they would sooner or later realize that the privileged minority had no function, and they would sweep it away. In the long run, a hierarchical society was only possible on a basis of poverty and ignorance.
...
In principle the war effort is always so planned as to eat up any surplus that might exist after meeting the bare needs of the population. In practice the needs of the population are always underestimated, with the result that there is a chronic shortage of half the necessities of life; but this is looked on as an advantage. It is deliberate policy to keep even the favoured groups somewhere near the brink of hardship, because a general state of scarcity increases the importance of small privileges and thus magnifies the distinction between one group and another."
Marxists are merely puppets of the elites and are used to advance their one world government agenda. In the Second World War, America armed Stalin and helped him even though he was supposedly a "communist" and against the capitalists and bankers who were helping him.