The Soviet Union did the same thing.............
Very effectively...The 30's an 40's in particular.
Of course in the 30's, being committed to the asylum was just another route to the firing squads that purged 50-100 million terrorists who believed in freedom & liberty.
We can expect more and more of this once obamcare is running full tilt. A measure of a person's mental health will depend, first and foremost, on adherence to marxist ideology.
This does not bode well for the 90% of Freeperdom who aren't among the marxist moles who have trolled the bandwidth since the election of 2000.