Eileen Wang, the mayor of Arcadia until last week, was forced to resign , pleading guilty to federal charges of acting as an unregistered agent of the People’s Republic of China. She previously co-ran a fake news site dressed up as a community resource for Chinese Americans. They copy-pasted propaganda from Beijing handlers — including cheerful denials of atrocities — and bragged about the clicks. It was almost comically straightforward: Propaganda in, influence out. That’s the genius —  and