Big Tech is a force multiplier. It amplifies the scale and scope of the damage. To make an analogy, it's like replacing muskets with machine guns. Capitalism was headed this direction long before tech came along, but with tools like these in their pocket, the scale of the disinformation went from "a serious problem" to "an existential crisis", and the tools we have to resist it are simply incapable of holding the line against the firehose of BS.