Morality without God

[downbeatplumb]

So I've never been that good at explaining to a theist how I justify my morality without God because I seem to fall into the trap where everything is just subjective and that kind of frustrates me.

Like if I say rape is immoral and a theist will say but that's just my subjective view. It's the law, sure but there is nothing fundamental grounding why it's wrong, it's just society and consensus agreeing that's it immoral. If, for example, society and consensus agreed that slavery was moral then it would be moral, etc.

I'm not well versed in the morality arguments, but I want to learn more so I can actually defend my moral foundation against theists because its something will inevitably come up in a debate. Your input, advice would be appreciated.

What is considered bad is a contextual thing. In some countries they have a man who goes around basically raping girls so they are ready for marriage. The family pay them to do it. In some countries they murder prisoners in the actual prisons.

Everything people in some cultures are wrong will be accepted in other cultures as the norm.

So morality is subjective.