What western democracies really need is an entire government segment dedicated to fact-checking. We could call it the "Department of Truth" (or "Ministry of Truth" in UK) and it would be responsible for labeling things on social media as true or false using little fact checker badges.
We literally have agencies that enforce degrees of truthfulness today, such as the FDA, FCC, and FTC. Our legal system is explicitly designed around determining degrees of truth in the courts.
