Block 'em and move on I say. It’s clear there’s no reasoning with them and there isn’t much we can do to stop them from spewing propaganda at us. In fact, engaging them will probably only exacerbate things.

Us: “China isn’t committing the atrocities the West accuses them of and here’s evidence.”

Anti-China people: “OMG you actively advocate for China’s atrocities and want them to keep happening!”