Neither won't they ever fathom the fact that governments inevitably become full-on fascist to the meek bleating of a critical mass of ther ilk (check the sympaties to the Chinese surveillance below).
Harmony is another word for suppression of dissent, and that's the effect it'll have.
There's a long history of tools being promoted for one purpose and used for another. Tools supposedly intended to restrict "porn" get used to restrict LGBT healthcare and resources. Tools supposedly intended to promote "harmony" on social media get used to track down activists and protestors.
The obvious response to such overreach is to refuse to allow such tools to exist. It's not that the tools invite abuse; it's that all use of such tools is abuse.