It's amazing that scrapping junk from inventory wasn't included into the base game, it makes sense that you can't scrap armor or weapons, but junk should be easily broken down into its base components. This is what we have our wonderful community for, fixing things like this. I haven't found a mod for scrapping junk items from inventory yet and it might not exist yet due to the lack of the creation kit... but I know many people who are eagerly awaiting for this mod to come out, and was wondering if anyone knows if it's going to.