Sounds like a plan to me. Replace them with voluntary militias and private security firms. Anyone that doesn't want to pay for protection, doesn't have to. This is kind of off-topic though, don't you think?
You still haven't actually explained two important things:
1) how is the criticism levelled against the idea of private, for-profit security agencies as organized racket actually false
2) how should the transition to stateless capitalist society be organized (apart from "well, it will be just like slavery and feudalism were abolished").
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“The possibility of securing for every member of society, by means of socialized production, an existence not only fully sufficient materially, and becoming day by day more full, but an existence guaranteeing to all the free development and exercise of their physical and mental faculties – this possibility is now for the first time here, but it is here.” Friedrich Engels
"The proletariat is its struggle; and its struggles have to this day not led it beyond class society, but deeper into it." Friends of the Classless Society
"Your life is survived by your deeds" - Steve von Till