https://responsiblestatecraft.org/china-cold-war-2669160202/
Nice to see your hard earned tax dollars are going towards such a fabulous cause. Meanwhile I've heard it said that Chinese and Russian bots exploit divisions in the Western world by talking about things like poverty, homelessness, gun violence, racism and sexism. Well maybe you should start doing something about those issues to stop them being used as fuel for alleged foreign propaganda efforts hmmm?
Lack of social cohesion is what makes people open to all sorts of ideas outside the mainstream, including propaganda. Social cohesion isn't unravelling because of the internet, it's unravelling because people's standard of living is collapsing and they don't believe that the government is working in their interest. Internet has been around for a long time now, but the political polarization is a very recent phenomenon that perfectly coincides with the ongoing financial crisis that started in 2008.