Earlier quoted context omitted.
As everyone knows, nobody propagated strange conspiracy theories before the invention of YouTube and Twitter.
Perhaps you are genuinely not old enough to remember a time before YouTube and Twitter, but there were way fewer conspiracy theories floating around, and they didn't have nearly the social impact that they do today. A coordinated misinformation campaign could never have swayed elections in the US and UK before social media. Why? Because there were institutions in place that acted as a filter. Say what you will about…
[0] https://www.smithsonianmag.com/history/conspiracy-theories-a...
[1] https://www.google.com/amp/s/amp.ft.com/content/aaf2bb08-dca... (amp link bypasses paywall)