Are you sure about that ? The Red Scare, the Cold War, nuclear weapons on Irak, and so on and so on ... I'm pretty sure a said nonsense would find a way to spread just like history showed us in the past.
1) Project your crimes unto your opponents (smokescreen + taking out targets).
2) Using priming, anchoring and repeating the same message exactly over and over. Ie. this is code for the "smooth transition" of power:
Pompeo Promises 'A Smooth Transition To A Second Trump Administration' (2020)
https://www.npr.org/sections/biden-transition-updates/2020/1...
Many people forget consciously. This works without social media, but the amplification may accellerate and strengthen the signal that much more when effective.
Yes, it is brainwashing techniques.
The craziest part is, the Gates Foundation did fund something very close to that: not microchips, but Biocompatible near-infrared quantum dots delivered to the skin by microneedle patches record vaccination.
It's essentially a tiny tattoo visible only in infrared light to track who has been vaccinated. So that rumor is more of a misunderstanding (of the difference between quantum dots and microchips) than misinformation.
https://www.scientificamerican.com/article/invisible-ink-cou...
By "our current technology" you mean social media. If you need evidence that it is time to do something about social media, consider this:
28% of Americans believe that Bill Gates wants to use vaccines to implant microchips in people - with the figure rising to 44% among Republicans. See: https://www.bbc.com/news/52847648
Before social media these kinds of nonsense would never spread, but now so many people believe this kind of nonsense that it has become a huge threat to society.