What is this with "nihilists don't care"?

They confuse caring and meaning since, in day to day reality, the two are enjoined. If I pull my hand away from a flame I've established that I care about my hand, that my hand has meaning to me. In other words, it doesn't seem there are any practical nihilists. We all find some meaning with our lives; regardless if we are nihilists or not. So nihilism is just a grand teleological position that denies teleology but has no practical applications. A lot of people emotionally feel something is wrong with nihilism but can't exactly state what it is so they state nihilists don't care but as you know that's false. The reality is that nihilism is make believe realism that doesn't accept reality. Nihilism accepts the theist position that there must be an ultimate meaning for everything, every act of our being must be formed against this ultimate meaning, and then throws out the existence of the ultimate meaning. However if we throw out the theist notion of a divine meaning, or an ultimate end outside of life, we find the nihilist position is meaningless. Life has meaning but the meaning of life is contained within life. We don't need to have our existence validated by a God for our lives to have meaning. Life has inherent meaning because it's a live. Nihilism, in the end, is the step-child of theism, it rejects God, but still wants God to give us meaning. Nihilists are actually avowed ex-theists that still accept meaning comes from the supernatural. You say our lives may be completely meaningless but that's only judging our lives by an imaginary supernatural standard outside of life. The meaning of life is contained within life and it doesn't matter if this meaning doesn't go on till eternity.