Neither is really bad or good. Constructive criticism is the process of offering valid and well-reasoned opinions about the work of others, usually involving both positive and negative comments, in a friendly manner rather than an oppositional one. In collaborative work, this kind of criticism is often a valuable tool in raising and maintaining performance standards.Some people become defensive even when receiving constructive criticism given in a spirit of good will. Constructive criticism is more likely to be accepted if the criticism is focused on the recipient’s work or behavior.
Criticism is not necessarily imply “to find fault”, but the word is often taken to mean the simple expression of an objection against prejudice, or a disapproval. Often criticism involves active disagreement, but it may only mean “taking sides”. It could just be an exploration of the different sides of an issue. Fighting is not necessarily involved.

Criticism is often presented as something unpleasant, but it need not be. It could be friendly criticism, amicably discussed, and some people find great pleasure in criticism (“keeping people sharp”, “providing the critical edge”).
My father informed me of this and soon we went into deep discussion with our thoughts of what is what. He is a very intelligent man and I wish be as so to. May this be the beginning of something remarkable…