I definitely agree with the statement, as in the beginning Shakespeare does present Lady Macbeth as an inherently evil character. By “mak[ing] thick [her] blood” (1.5.33) and  “stopp[ing] up the access and passage to remorse”(1.5.34) Shakespeare conveys to the audience that Lady Macbeth isn’t the stereotypical woman that existed during that time, she has symbolically lost all her “milk” that made her innocent and gentile leaving a corpse filled with an evil spirit. This sense of evil in her character is further exemplified when she tries to convince Macbeth into killing Duncan by telling Macbeth to “screw [his] courage to the sticking-place”(1.5.60) and describing to  Macbeth how she is willing to pluck her hypothetical son’s mouth from her nipple and “dashed the brains out” (1.3.57), Shakespeare shows how Lady Macbeth is manipulative and cruel, willing to exploit her own husband into killing the King just to satisfy the lust for power.

However, this idea is then contradicted in the second part of the play where Lady Macbeth is sidelined in the play by Macbeth. Macbeth undermines her referring to her as “dearest chuck” (3.2.47) and hiding the murder of Banquo that will happen. Shakespeare slowly pushes Lady Macbeth from the play reducing the scenes she appears in and keeping Lady Macbeth and Macbeth isolated from each other in the scenes representing the state of their marriage. Furthermore, Shakespeare clearly shows how Lady Macbeth regrets the killing of King Duncan “dwell[ing] in doubtful joy” (3.2.9), Lady Macbeth doesn’t feel the bliss she hoped she would feel after killing Duncan. Because of this, the guilt she feels for the killing of King Duncan is exemplified, and so she slowly gets hallucinations and starts to sleep walk. Throughout the play, Shakespeare provides Lady Macbeth a character progression slowly revealing that she isn’t the cold-blooded killer the readers once percieved her as.