Im glad that things have gone to better there I hope things keep going that way. Here things went to better a little bit, small parties gained some weight but only in region scale, wich isnt bad but still not enough. At state scale its still a bipartidst system. 2 blocks concentrate 90% of the representatives (around 75% of the votes and this is where that majority thing starts to shake).
We have gone off topic with this debate about germany in 1930s but I think that you have to the see the whole picture. Hitler and the nazi party wanted the power to rule the state. In their minds wanted to create a great nazi country to expand and conquer other regions creating and imperium. You cant fight with your neighbours if you are fighting in your home. They wanted to look legitimated thats why the expent 4 years creating propraganda, unrest and disorder.
The last thing they wanted was to face a civil war, after all they only obtained 17 mill votes of a total population of over 60 mill. The costs of going rogue against its own people would be to great to achieve that goal of a 3rd reich imperium in a short time, weakening them. What they had in mind was, eventually in a lapse of 6 years, to face 3 or 4 of the Great powers of the world.
In my opinion it had nothing to do with democracy or or its principles. It was just a tactical move.
P.D: I still find disturbing when you say that encarcerating, vicitimizing and killing elected representatives, legal parties, and politicians is some kind of extra-democratic principle. For me is a fragrant example of what anti-democratic acts are.