Anarcho-capitalism implies the need to make crime unprofitable. I have a multi-step solution for that:
0: check whether you rightfully own what you think you own and what you control
1: protect what is rightfully yours, reducing incentive and attack surface by whatever means rational, including simple self improvement and wealth accumulation & safeguards, study, free speech, etc.
2: protect what is rightfully others' by similar means. What is good for you is often good for everyone else.
Your best weapon is critical thinking.
Your next best weapon is creativity.
Your next best weapon after that is education.
Your next best weapon after that is Bitcoin.
And lastly, guns, lots of guns, in every single house, come on Great Britain wake the fuck up from your nonsense coma. You're seeing racism in the fucking ceiling patterns.