Slightly related: I saw a comment the other day by someone who had somehow managed to blame Obama for the rise in violence against minorities, with the rationalization being that “we didn’t have all of these problems until Obama was in office”.
It’s a classic case of correlation != causation. Smart phones with video cameras in them became ubiquitous during Obama’s time in office. Similarly, bodycams became more commonly used by the police. That’s the difference.
This has been happening all along, we just couldn’t prove it until now.