Underlying an argument are assumptions, a body of claims that aren't advanced openly and must be accepted by the reader for the argument to gain credibility. Annette Rottenberg calls these assumptions warrants. Claims can be of three kinds, says Rottenberg, each answering a different general question. Your critiques are built upon a value claim. Rottenberg divides support into evidence and appeals.
Evidence includes facts, either examples or statistics, essentially a compilation of examples.
Past the facts are inferences from them, opinions about their meaning. Because facts won't answer every question, we're left to judge. Not all opinions are valid, of course. Sound opinions support themselves with clear judgments from reliable facts. Appeals connect arguments to audiences.