Socialism/Fascism: Two sides of ideological coin?

Communism, Socialism, Fascism and Nazi are all different forms of Socialism with the first two being degrees and different them the last two is that they are supposedly not based on nationalist identity but on the working cl world wide. Fascism and Nazi are both socialist systems but confined to a Nationalist base. Other minor differences exist on whether the industry is owned by the government or controlled by the government but again in reality what is the difference in the end-I own your company or you have to do what I say or else.