The central point of this thesis is that technological progress was almost universally abhorred in the immediate aftermath of the Great War due to its perceived role in the industrialisation of death and destruction on a hitherto unseen scale, although this became less pronounced over time. The problem is that it wasn't almost universally abhorred. The fascist movement, for example, celebrated technology and embraced Futurism[0], and in their glorification of war they didn't believe that "one is spared or obliterated by chance alone" but saw the deaths as purifying and a necessary part of Social Darwinism. (Not views I subscribe to BTW, just making the point that there certainly wasn't a single common interpretation of the Great War in its immediate aftermath, and that perhaps the left tended to be more anti-technology and the right pro-technology.)
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The situation with Italian futurism is not so simple.
Most of the futurist ideas on the positivity of the war are from before WWI. After the war, when fascism started to rise, the "second futurism" came to life, a new generation of futurists (although some "old" artists were still futurists, like Depero), much less involved in politics: https://h2g2.com/entry/A723764
They were still promoting technology and speed and the future, but the experience of WWI did change the overall attitude.