The much better question is: Why are you changing the meaning!? Why do you ignore contexts? Why do you automatically assume that the "book of life" and the "book of the living" are one and the same books? Why haven't you performed an inductive study to get to the truth?
Read the link I sent you. It explains the book of the living in the OT, which is not the same as the book of life in the New. David essentially prayed that his ungodly, unrighteous enemies be cut off from the "land of the living" (Job 28:13; Ps 52:5, 116:9, etc.) The "land of the living" is on this side of death here on earth -- before we physically die. David was actually calling for the physical death of his enemies. He is asking God to blot his enemies' names out of the book of the living by their physical death.
And you didn't even take my advice and read the larger context of Ex 32:32-33, did you? You really do believe that you have a mortal lock on spiritual truth -- that you have it all down pat, don't you? If you read the larger context of the passage as I exhorted you, you would have learned that physical death is in view in that passage as well!
Ex 32:32-35
32 But now, please forgive their sin — but if not, then blot me out of the book you have written."
33 The LORD replied to Moses, "Whoever has sinned against me I will blot out of my book. 34 Now go, lead the people to the place I spoke of, and my angel will go before you. However, when the time comes for me to punish, I will punish them for their sin."
35 And the LORD struck the people with a plague because of what they did with the calf Aaron had made.
NIV
In v.32, Moses is not asking God to blot his name out of the book of life, as you suppose. He's not asking God to condemn him spiritually for eternity. Rather, Moses was willing to intercede for sinful Israelites and take the physical punishment that was due for their sins. He was willing to actually sacrifice himself physically in their place.
In vv.33-34, however, God rejects Moses' request and clearly tells him that He will blot those who sinned against him our of his book -- "I will punish them for their sin".
Then in v.35, it tells us that this is precisely what God did. He struck the sinful people with a great plague and tens of thousands died physically -- in fact an entire generation was not permitted to remain in "the land of the living" so that they could cross over to the Promised Land (cp. Hebrews 3).
And I have no idea what you're trying to ask in your first sentence.