I suspect the intensifying divisions in our society are also a result of Russian/Chinese psyops. The "post-truth" era is just a prelude to a greater war the west will eventually have to fight against them.
Combating misinformation is an important issue, any efforts to do so must be balanced with considerations of free speech, government power, and practicality.
It may be more effective to focus on promoting accurate information and critical thinking rather than trying to force people to accept the "truth."