Delete Bitcoin Qt Mac: System folder inflated in size, although “Application Support/Bitcoin/” and app deleted

I downloaded Bitcoin Qt and the entire blockchain, now I’d like to delete it. I followed instructions from various search results, which all instructed to delete the app and to delete all data (where the “data”, the blockchain, is supposed to take up so much space) in ~/Library/Preferences/, ~/Library/Application Support/ and ~/Library/Caches/. This was the…