Fortunately, more research and discussion have shown that the kind of systematic exclusion of uncontrolled thoughts and undesirable intellectual processes aimed at (no, really, they really have!) by 20th-century totalitarians is actually not achievable. As long as noun-subjects have verbs that take an object, constructions of the form "Big Brother eats [insert favorite scatological category]" will always be possible.
The Russian Communists, on the eve of the October Revolution, spent all night arguing about what to call the ministries they were about to take over. Having spent a generation demonizing them in Communist propaganda, the Bolsheviks had to find a way to force people to think of the selfsame "organs" in a positive way after the Reds took them over.
As your last paragraph shows, the left uses linguistics to gain and keep power. Once that is achieved there is little need to go to the trouble of "systematic exclusion" through linguistics. Then it is done by force.