Answer: Here are a few quotes which should be in the text that explains why Lady Macbeth felt her husband was too weak to be King.
Step-by-step explanation:
Lady Macbeth believes her husband to be weak and a fool who lacks masculinity, because he hesitates to go after his foretold future.
"Art thou afeared / to be the same in thine own act and valour / as thou art in desire?" -LMB to MB
"He is too full of the milk of human kindness to catch the nearest way." - LMB spoke these words out loud to herself about her husband.