I don't believe that there is a polite way to say "These people have no idea what they're actually doing, they're applying other people's logic blindly, and if

I don't believe that there is a polite way to say "These people have no idea what they're actually doing, they're applying other people's logic blindly, and if anything goes wrong they're stuck." If that's not what you meant to communicate, you should probably explain more what you mean by 'script kiddie'.