When you remove cancer, what do you replace it with? I don't believe top-down systems can serve society.
Society precedes the State. Decentralized voluntary human interaction works every day. Problems don't justify a permanent criminal class (government) with "legal" privileges.
Its not a cancer, see it like a glass of water if you remove the glass you need to store the water somehow.
I think your solution would just bring to the rise of clan that are dangerous and take other by force and then people regroupe to defend small group become medium then large then it recrate a form of gov
The worst case for abolishing the territorial monopoly in violence is... a territorial monopoly in violence? Government is not governance. The latter is voluntary and decentralized. It's how society really works in spite of government. Politics is propaganda justifying plunder.