I argue that morality can exist without God or religion because moral behavior and moral reasoning do not logically depend on belief in a divine authority. Humans can develop moral principles through reason, empathy, shared human needs, virtues, and concern for the well-being and dignity of conscious beings. We can evaluate actions according to principles such as fairness, honesty, autonomy, and avoiding unnecessary harm without appealing to religious commands. The fact that people can disagree about morality does not mean morality disappears without God. It simply shows that moral systems can be developed and evaluated by conscious beings. Religion can provide one foundation for morality, but it is not the only possible foundation. Therefore, the existence of morality does not logically require God or religion.

You're assuming that if morality isn't grounded in God, it automatically becomes preference or power. But that's a false dilemma. A moral principle can be grounded in reason, human interests, empathy, autonomy, and equal consideration without being a divine command. Your regime example doesn't prove that God is necessary either. A secular moral framework can consistently say that persecuting a minority is wrong because it violates principles such as equal moral consideration, human dignity, autonomy, and unjustified harm. You can disagree with those principles, but disagreement doesn't turn them into mere preferences any more than disagreeing with logic makes logic a matter of personal taste. And “commands imply a commander” doesn't establish that moral truths are commands in the first place. Morality can be understood as principles for how conscious beings ought to treat one another, rather than orders issued by a person. Also, Dostoevsky's statement is a philosophical warning, not evidence that God is necessary for morality. The fact that there is no divine punishment or “final justice” doesn't logically mean that harming innocent people becomes morally acceptable

You're assuming that if human dignity isn't objectively built into the universe, then it is merely arbitrary. That doesn't follow. A principle can be created and defended by conscious beings without being a mere preference, especially when it is based on consistency, reason, empathy, and equal consideration. You ask where inherent worth comes from in a material universe. But appealing to God doesn't automatically solve that either. If humans have worth because God assigns it, then worth depends on God's decision; if humans have worth because they possess some property that makes them valuable, then you still have to explain why that property grounds moral obligation. Simply saying “God gives us dignity” doesn't demonstrate why that makes the obligation objectively binding. And a regime's ability to reject human dignity doesn't prove that dignity is meaningless. A person can reject equality, but that doesn't make their rejection logically consistent or morally justified. My position is not that morality is whatever the majority says. It is that moral standards are grounded in conscious beings and can be evaluated through principles such as consistency, empathy, autonomy, and equal moral consideration. So secular morality doesn't collapse into “whatever is popular”; it simply doesn't require a divine lawgiver.

You're defining a moral obligation as something that must compel every person to obey it regardless of their values. But that's an additional definition you're imposing, not something you've demonstrated. A moral principle can prescribe what someone ought to do even when they choose to violate it. The fact that a persecutor can ignore a secular moral principle doesn't make that principle mere consensus. People can violate laws without making laws meaningless, and they can reject logical arguments without making logic invalid. The ability to disobey a standard is not evidence that the standard doesn't exist And saying that God provides authority doesn't solve the problem unless you establish why divine authority itself creates moral obligation. If your answer is simply “because God commands it,” then you're appealing to God's authority rather than independently demonstrating why that authority is morally justified. So you've shown that secular morality may not provide the kind of transcendent authority you're looking for, but you haven't shown that morality requires that kind of authority to exist.

You haven't established that morality must be absolutely binding on every possible person in order to count as morality. That is your definition of morality, not a conclusion you've demonstrated. My position is that moral standards can exist as reasoned principles held by conscious beings even if someone is capable of rejecting them. Saying God's commands are good because they flow from God's good nature also doesn't solve the grounding problem by itself. You still have to explain what makes God's nature “good.” If “good” simply means “whatever God's nature is,” then calling God good becomes circular: God's nature is good because it is God's nature. If goodness has a standard independent of God, then God isn't the ultimate source of that standard. And the fact that a moral system can be abandoned doesn't make it merely a preference. People can abandon principles they have good reasons to accept. A persecutor can reject equality and human dignity, but that only shows that moral principles can be violated, not that they have no moral justification. You've shown that secular morality isn't transcendent, but you haven't shown that transcendence is a necessary condition for morality to exist.