Do you trust that the state will have your best interests at heart 100% of the time? Do you trust that the state will use its power solely against “criminals” and that the set of behaviors labelled criminal will remain acceptably restricted? Even if such were the case now, in the present, you can’t guarantee that it will be in the future, and states are loath to relinquish power once given.
TL;DR: You should presume any power given to the state will, inevitably, be abused in some way.
Do you trust that the state will have your best interests at heart 100% of the time? Do you trust that the state will use its power solely against “criminals” and that the set of behaviors labelled criminal will remain acceptably restricted? Even if such were the case now, in the present, you can’t guarantee that it will be in the future, and states are loath to relinquish power once given.
TL;DR: You should presume any power given to the state will, inevitably, be abused in some way.