I think it makes sense to use the correct words, esp. if you’re using loaded words like communism or fascism. So the early christians (and many before and afterwards) were trying for a spiritual and communal life in a small group of believers. Like monks do. But that is not what most people are thinking when they are talking about communism.

Because communism as a concept was created in the 19th century by Karl Marx. There can’t be any communists before that because how could you even be a follower of an idea/ideology/concept before it was inventet? There also can’t be any christians before Jesus lived or Buddhists before Buddah

Even the idea that someone living in the roman empire could be a communist is ridiculous.