You've just summarised TVPiS...
Actually i haven't. Those are just promotion for the ruling party, really badly made propaganda. I haven't noticed even one totalitarian ideology or any ideology for that matter...
Who decides which opinions, and how do they decide?
I think I have already answered that one - in a healthy society with a common set of values exist unspoken consensus as to what is and what isn't acceptable. As to who - the majority of country's elite.
Isn't LGBT, progressive neo-Marxist ideology trying to do that as well. Rewrite DNA of western Society and impose its own values as a fundament.
The thing is their ideas and ideology are not only artificially created and very poorly at that and it won't work - i..e sustain any kind of healthy society.
It only looks good now as it is kind of a parasite ridding on basically unchanged society. It can claim that all shortcoming and difficulties derive from that old patriarchal oppressive civilization. Thing is if humankind would have been tailored and deeply rewritten according to the progressive scrip the reality would be much much worse than all that exist now or transpired in the past.
There would be only two options either a totalitarian bloody regime in charge or the chaos of anarchy and tribal/sectarian warfare...