See, nazism is facism to the extreme. Look at the example:

Nazist : The government shoots you and takes your cows
Facist : The government takes your cows and sells you the milk

Shooting the person is the extreme alternative to stealing from the person.

The communism is difficult for people to understand. When you say communism people think of Soviet Union, China, North Korea, Cuba, and some others. Karl Marx wrote about communism in its purest form in The Communism Manifesto. Lenin had Socialist ideals but in a Communistic state (Overthrowing Tsar Nicholas II). Stalin took communism to the extreme and made it horrible, but covering it up with propaganda. Therefore, the communism most people know about isnt "Pure" Communism..