alt Hacker NewsThe corollary of “if we took a stand” is that Capital took a stand and collectively undid a lot of the gains of the post-WWII social democratic order.
So no. It wasn’t caused by tech beyond the uninteresting factors like modern society being complex and, of course, that tech developments influence things (pretty much all things).
The productivity gains we've seen above the capacity of human productivity would have been impossible without tech. It absolutely was caused by tech.
The benefactor of those gains was also entirely decided by those who created the tech. We could have given use of that tech to everyone. In some cases we actually did (e.g. open source), but in most cases we gained (at least partial) ownership of the capital so it was in our best personal economic interest to keep it for ourselves and our close friends.