Answer:
In Act 3 Scene 2 of Macbeth, we feel anger towards Macbeth because of his callous treatment towards Banquo and his lack of concern for the lives of those around him. Macbeth's actions in this scene show a complete disregard for morality and human life, making him a highly unsympathetic character.
One of the primary reasons we feel anger towards Macbeth in this scene is his decision to have Banquo killed. Banquo is Macbeth's former friend and ally, but he becomes a threat to Macbeth's power as he is prophesied to father a line of kings. Macbeth decides to have Banquo killed to eliminate this threat, and in doing so, he demonstrates his lack of loyalty and betrayal towards someone who was once close to him. Macbeth's willingness to murder his former friend and ally is an act of extreme callousness, and it makes him highly unsympathetic.
Furthermore, Macbeth's lack of concern for the lives of those around him is evident in this scene. He orders the murder of Banquo and his son without any regard for their humanity or the impact this will have on their loved ones. Macbeth even goes so far as to say that he would rather risk his own life than have Banquo's descendants inherit the throne. This shows a complete disregard for human life and makes Macbeth a highly unsympathetic character.
For example, Macbeth says, "It is concluded. Banquo, thy soul's flight, / If it find heaven, must find it out tonight" (Act 3, Scene 2, lines 151-152). This statement shows that Macbeth has no qualms about ordering Banquo's murder and is willing to take his life without any hesitation. This callous attitude towards human life is what makes us feel anger towards Macbeth in this scene.