Who or what is to blame of Romeo and Juliet's death

Fate
The inevitability of fate permeates the play. In the chorus if the play, it tells us that both lovers are “star-crossed”. The mechanism of fate works in all of the events surrounding the lovers, reaffirming its role as the lovers sense its interference. Indeed, Romeo and Juliet both have ominous feelings about their relationship. Romeo quoted “some consequences, yet hanging in the stars”, which gives the audience insights to the audience that the play would have a tragic end.
It was fate that the lovers lived in two feuding families which had a strong sense of enmity. It was fate that a horrible series ruined Friar Lawrence’s seemingly well-intentioned plans in which the characters had no control over. It was also fate that led to the tragic timing of Romeo’s suicide and Juliet’s death.
This instance of fate provides a large complication which ultimately contributes to the deaths of Romeo and Juliet’s, which was pre-ordained. It was not the lovers’ flaws that led them to their graves, nor did the tragedy spring from their own weaknesses. Rather, the manifestations of fate helped bring about the unavoidable outcome of the young lovers’ death.

Lord and Lady Capulet
The domineering Lady Capulet believed that the tradition of arranged marriage was right. She informed Juliet of her marriage with County Paris which was suddenly brought forth to ease Juliet’s grief. However, Juliet adamantly refuses. Had Lady Capulet been more of a mother, rather than a body that carried her for nine months, Juliet would have felt closer to her mother instead of thinking that Friar Lawrence’s plan was her only option.
Lord Capulet also possessed a defect of character. He has a narrow vision, which makes him think that the only way to ease Juliet’s grief was a marriage to Paris. His distinct love for her creates blindness to the fact that Juliet may conceive some legitimate concerns behind her refusal to marry Paris. Rather, he demanded Juliet to “get thee to church a Thursday or never after look me in the face”.
The Capulets reaction to Juliet’s refusal to marry Paris pushes her to such an extent that she must run away with Friar Lawrence’s plan. Had they been more concerned, the conceived plan may