Who gets to define the bigotry? Because they have ultimate social power in your brave new world. Granted, the first wave of people to wield this power would generally do so out of compassion. The next waves that come to power would wield it ever more brutally in order to engineer ever more ideologically extreme visions of society. It is precisely this sort of extremism that caused 100 million+ deaths in the 20th century in the soviet union and china.

You don't realise it, but you have just expressed an opinion equally extreme and dangerous as fascism.

The only sane way to run a society is through the free exchange of ideas, good and bad, and the unfettered right to discuss and criticise those ideas.