I’ll agree with you except for the timeline. It started after 9/11, bigotry was far less openly acceptable during the 90s. It just blew up after Obama was elected and social media took off. People were all exposed to the same type of media at the time, and big media companies weren’t spreading extremely racist content, other than a few fringe things like Rush Limbaugh. Fox news really took off after 9/11 too.