"http://tvtropes.org/pmwiki/pmwiki.php/Main/HitlerAteSugar"

No, that is not the point. Hitler eating sugar had nothing to do with his government. Proportional representation did. That's how he came to power. Look it up.

https://en.wikipedia.org/wiki/Adolf_Hitler#Appointment_as_ch...

"Hindenburg reluctantly agreed to appoint Hitler as chancellor after two further parliamentary elections—in July and November 1932—had not resulted in the formation of a majority government."

They had large number of splinter parties, all of whom hated each other's guts, and which were unable to form an effective government. The Nazis were not a majority (no one was), but were a large, well-disciplined bloc. The rest is, as they say, history.