There is no legitimate argument that we haven’t moved leftward over the last thousand or so years.
The colonial era of the 1400s to 1900s resulted in an industrial scale enclosing, enslaving, and extermination of entire ethnic cohorts. This was not a leftist move by any definition. It was 500 years of settler colonialism which resulted in some of the most abysmal living conditions in recorded history.
We have not yet recovered from this massive global reconfiguration of human society. While we enjoy more advanced tools and industrial scale infrastructure, we remain both socially and physically less independent of our authoritarian oligarchs than we were prior to the European Imperialist Era.
So progress that only seems like progress but progress is progress boss.
We have a modern economic system that produces more homes than people, while guaranteeing a certain population will remain homeless their entire lives. We have a system that produces enormous surpluses of food, but guarantees a segment of the population will remain malnurished. We have a system that produces vast excesses of professional expertise, but guarantees only a fraction of the population can access professional services.
All of our shortages are manufactured. Trump's latest tariff wave is the most blindingly obvious example of how these shortages are imposed - not even via some convoluted market mechanism, but through the whims of an authoritarian madman.
This is not progress in a social sense. It is a huge regression from our historical roots. We are prisoners of the state and of the economy, subject to arrest, torture, and execution at the whim of the local leadership. And the only reason you and I are not personally under a boot right now is because we haven't been targeted yet.