Perhaps not, but the parent did say that one purpose is to prevent the abuse of power.
And sure, someone might follow up with "but I trust my elected officials/police/FBI/etc. not to abuse power". But then you can provide examples of times when that trust was misplaced. Or point out that elected officials are elected in and out and law enforcement officers quit/retire and are hired all the time, and the incoming people might not be so trustworthy.
So yeah, "this is how it's supposed to be in order to prevent the abuse of power" may not be a complete, ironclad argument, but it's a good jumping-off point to further discussion.
And sure, someone might follow up with "but I trust my elected officials/police/FBI/etc. not to abuse power". But then you can provide examples of times when that trust was misplaced. Or point out that elected officials are elected in and out and law enforcement officers quit/retire and are hired all the time, and the incoming people might not be so trustworthy.
So yeah, "this is how it's supposed to be in order to prevent the abuse of power" may not be a complete, ironclad argument, but it's a good jumping-off point to further discussion.