When that is the second line of your article, you are, in fact, stating that they are identical.
Fascism and Communism are very, very different ideologies. When you lump them together because they have "striking similarities", you lose a great deal of credibility because they're goals are quite different from one another.
Again, they both may be totalitarian, and they both may bring misery to those living under their systems, but that does not justify using them interchangeably. Its sloppy, and its very superficial to do so.
National Socialist Germany was indeed Socialist.
Fascism is Italian.
Soviet Socialist Russia was Communist.
Maoist China is Communist.
Big Deal.
Why split hairs? They were all complete government control and resistance equals execution.