Is Macbeth a sympathetic character?

In the beginning of the play In Act 2 Scene 3, Macbeth and Lady Macbeth had seen it through with their plan to kill the king, but Macbeth felt bad about what he had did for the king, He felt bad for the King for the way that he had to die which was by murdering him. Macbeth says that he rather not be alive or conscious for the act that he had caused and in that sense it shows that he was a sympathetic person and was sorry for the loss of the King. However, further in the story after all the killing and murders had become something so normal to him, that so was death. In Act 5 Scene 5, In his soliloquy Macbeth he states “Life’s but a walking shadow, a poor player That struts and frets his hour upon the stage And then is heard no more. It is a tale Told by an idiot, full of sound and fury Signifying nothing” (Shakespeare, Act 5 scene 5). Macbeth is stating that he knows that life isn’t fair but he would not take time to mourn for his wife Lady Macbeth and rather fight. Macbeth at this point is not a sympathetic man and that makes him more of a monster.