It is a truth universally acknowledged that cats don’t like sharing. Especially food! Not with their owners, not with their siblings, or, God forbid, with dogs.
If you want to steal food from a cat, the only thing you’re going to get is a huge scratch over your face, so don’t even try. Just accept them as they are, crazy and selfish, because they are also cute, intelligent, and funny! They may not let you be the boss, but they will be a very good boss to you. And you will be one happy subject! There is no doubt about that!