(Wikipedia) Totalitarianism is a form of government and a political system that prohibits all opposition parties, outlaws individual and group opposition to the state and its claims, and exercises an extremely high if not complete degree of control and regulation over public and private life. It is regarded as the most extreme and complete form of authoritarianism.
Just like how a democracy can work. It all comes down to the people in charge of any system.
Tyranny of the majority is always happening though. It can’t really be avoided. The US is experiencing it on everything from race to religion to home ownership.
There is no country homogeneous in every way to avoid it.