I think it has now been suitably settled that the OP is complete drivel (sorry, Ubeyde, but it really is), but I'd like to comment on a couple of points. Firstly,
Hitler believed that his nation of Germans was the most technologically and sociologically advanced race on the planet. And, therefore, should be the Ruling Race
While true, to some extent, the source of this belief actually had little to do with 'social Darwinism'. It was far more the result of historical events in the nineteenth century, and with influential philosophies (pre-dating Darwin) significantly influenced by that history; that of Hegel in particular. In brief, there was a widespead belief in Germany that the German people and nation were going through a continuing process of realizing their individual and national potential and identity after a long period of disunity and outside domination (not least by Napoleon I). Victory in the Franco-Prussian war vastly boosted both material resources available to Germany, as well as feelings of national pride and power and belief that what was now the German Empire was about to become genuine 'world' power, able to compete with Britain in particular. Hitler's views originated far more from a mix of that perception of Germany, and the consequent shock and denial that came from defeat in WW1, than anything to do with 'social Darwinism'. Of course, he also considered other 'races' inferior, but such racism - both towards Jews and Eastern Europeans, and beliefs in racial superiority existed long before Darwin and far beyond Germany.
Now you may ask why war has evolved so? If you look back at the history of War you will see how it has advanced. Before the last few hundred or so years, when war was fought, it was fought out between the armies of two conflicting nations, however, as of the First World War, the harming of innocents on both nations has become commonplace. Instead of fighting the wars on the battlefield- war now involves innocents and those who want nothing to do with fighting, e.g. the disabled, elderly, women, children, etc.
Your thesis is complete nonsense. Why don't you
actually "look back at the history of war"?! Caesar, Alexander, Ghengis Khan and a thousand others all made war on civilians. In ancient times it was almost expected that military age males of a conquered city would be killed, and everyone else sold as slaves. The real driver was from increases in
technology, and rapid increases in that that took off long before Darwin. The three most significant events were i) the widespread use of gunpowder, ii) the Industrial Revolution and iii) the development of nuclear weapons. All three had far reaching effects on civilians as well as soldiers.
Far from 'as of the First World War', the pattern of 'modern warfare' was already well established by the end of the American Civil War. Sherman's torching of Atlanta, for example, was a deliberate attempt to wage war by terrorizing a civilian population in order to harm national morale (EXACTLY the same reasoning behind the London Blitz, and the later Allied bombing of cities in both Germany and Japan). None had anything to do with 'social Darwinism' and whatever Sherman may have thought of the Confederates, it certainly had nothing to do with them being 'less technologically and sociologically advanced'. WW1 itself was little different from the Napoleonic wars in terms of it's direct effect on civilians. By the time of WW2, aerial bombing had been improved to the extent if formed an effective way to wage war whether armies were in direct contact or not, by attacking military facilities, industrial facilities (war now being industry driven) and civilian morale. And atomic weapons, of course, are completely indiscriminate as to who they happen to kill. Finally, as far as I am aware, the only attempt made to 'extinguish a population', as such, using chemical weapons - apart from the Nazi gas chambers, of course - was actually made by Saddam Hussein. Stalin preferred starvation and bullets. Neither Germany nor the Allies used gas attacks on civilians in WW1, and it was not used at all in the Western theatre in WW2. Both chemical and biological weapons were used to attack civilians on a couple of occasions by the Japanese, but that was as 'terror weapons' and - again - nothing to do with 'social Darwinism'.