Way to miss my point entirely. Not knowing about how gravity works doesn't make it less real. Being wrong about what's moral or immoral is not "a different morality", it's being in the wrong. My whole point is that morality is not "ideals" or "beliefs", it's more akin to "facts" and "knowledge" - and you keep talking as if I'm saying the opposite.
I think you're missing the forest for the trees. Religion, religion, religion, I did not once said religion is the source of morality. I said GOD is. The world He created just operates on set rules. You wouldn't accuse physicists of proclaiming their "opinion" about how exactly gravity works and call it their community's "arbitrary decision" to teach it.
The word "better" has no meaning if morality is subjective, that's the point. We can say "the higher the temperature, the more water evaporates" or something, because temperature is not a matter of opinion or majority vote. But we can't say "the nicer the temperature, the more water evaporates".
Treating each other well, sure, let's go with that. I'm gonna say "treating each other well" involves forbidding abortion, aka murder of helpless children, preventing it at all costs. But a person on the political left will jump in and say "treating each other well" involves giving all women free access to abortion, because they should be able to have unprotected, irresponsible sex all they want and not suffer the natural, obvious consequences of their actions. Would you look at that, we both agree on treating each other better, how well we would get along.
If a higher entity told you something was wrong, and its opinion is what made it wrong, it's not ethically wrong in any logical way. It's wrong only because you'd be disobeying the higher entity's desires. Which is the absolute worst way to construct an ethical system. "do it because I said so" is a poor reason to do anything. "do it because I know better than you" hints they are also logically thinking it out, meaning morality is not based on their will, but because it is helpful or meaningful in some way we could suss out. Which means...we don't need a god to arrive at morality, we just have to think it through
Physical reason = we care about each other.
Let me unpack what you said. We care about each other therefore we treat each other well therefore we don't need objective morality to treat each other well.
Except objective morality is the
source of "we care about each other". We are moral therefore we care about each other therefore we treat each other well therefore we
think we don't need objective morality to treat each other well.
That's like saying we don't need to actually like a video game because we keep playing it and we have a good time doing so. And since we're having a good time, we don't need to even like the game, just need to keep playing. Playing is the source of the fun, clearly, not some "liking", get real.
Yes, that is the weirdest analogy I've ever made.