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What I mean is this by example: We have a tree (blockchain) with many branches and smaller branches (transactions, including theft ones/hacks). So a branch is involved in a hack. The system creates a sub fork which immediately renders all the units of value worthless and disconnected from the primary trunk (tree), essentially snipping off the dead/hacked branch from the whole chain so they may have a ton of units but those units are no longer of value, and nobody will be inclined to trade it for cash.
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What you are describing is essentially an "editable blockchain". An editable blockchain is an oxymoron.
Satoshi "invented" the PoW chain system to prevent edits within an online currency, even theft.
Also, you are arguing for blacklisting of coin, which is a violation of the social contract and goes against
almost everything that allows Bitcoin to work. If what you are explaining becomes a reality, then there
is no longer a valid purpose for Bitcoin to exist. You cut your nose to spite your face.
All bitcoins are free and equal, or one day none shall be.