Yes television and radio before it, have enabled people to reach massive audiences, for generations.
But now there are certainly MORE people capable of doing so. A lot more.
And I highlight, again, that this creates a situation where because there are so many voices out there, people can create their own reality by picking the ones they want to listen to. The ensconce themselves in an echo chamber of confirmation bias, to the point where I may live in a completely different reality than my neighbor.
IMHO that's new in human life.
30 years ago, we had three main networks all basically running the same narrative on the nightly news. They might have been right or they might have been wrong, but the entire nation lived in the same narrative, with the same facts, and had to deal with each other within one reality.
Now one side lives in one reality, and is never exposed to the other. While the other side lives in a completely different reality, and is never exposed to the other. When the two come into conflict, literally they cannot even discuss the differences because the bridge is too far between them.
I don't know how this ends... But I can't think it's going to be good.