The point of Church/State separation isn't that any idea that religious people agree with is wrong; it's that religion shouldn't be the basis for laws. I don't care if people's religion gives them a "bias" against murder or theft, but I care a whole lot about religious people's transphobia and disdain for sex workers when those biases lead them to lobby for laws that affect my life. This isn't "folly" (nice condescension there, btw), this is something everyone should be able to agree on. Laws that affect everyone get to be decided on by everyone, not one ideology. This is a central tenet of democracy and shouldn't be controversial.
You didn't actually answer any of the questions I asked, but ok.
Yup, procreation is a part of a society flourishing (though not necessarily for individual flourishing). Eating is a part of flourishing, too, but that doesn't make vomiting immoral, because sometimes you have something in your stomach that you don't want there. If a person has something in their womb that they don't want there, they have the right to remove it.
Ahh, so you switch from using "mankind" and insert "society" instead in your reply, and then resort to using transphobia and disdain for sex workers as a basis for a position? I never once mentioned god as the reason "why" things are to be considered right and wrong. I simply gave an account of my own involvement in a class full of white, black, asian, gay and lesbian students who were asked to use debate and discussion in determining how to derive laws without any religious context or attachment. We failed to do it. We didn't fall victim to fragmenting into secular/non-secular groups, we fell victim to failure because we couldn't agree on the basis for the laws. We saw a fallacy and contentious point arising out of the application of "majority opinions" and how they would come to disenfranchise those in the minority opinion space. What we did do was look to non-religious sources of ethics and morality when it came to addressing shifts in public opinion over time where laws are concerned, but again we failed to make the distinction in who laws were supposed to apply to. In the end, we approached our professor with the simple conclusion that in matters of life, liberty and the pursuit of happiness, there should be "no laws" enacted that would prevent the free exercise thereof.
Let me ask you this, why should anyone obey a god? Why does God/the gods have the authority to make laws for humans to obey?
I'll answer your questions now:
Why should anyone obey a god? - Because no one is in a position to tell them they shouldn't. Lack of holding a religious dogma/belief system doesn't elevate someone into an ethically, morally or more enlightened individual over anyone else.
Why does God/the gods have the authority to make laws for humans to obey? - Because this is what the people of the time submitted themselves to. Not saying it is right, or wrong, but the topic of this thread is about the separation of church and state, and more specifically, the constitution, which contains acknowledgements of the aforementioned submission in it's precepts. That's why I said that under our constitution, any belief that we can have true separation of church and state is folly. It wasn't a condescension towards you or anyone else.
Your use of the term "secularists", belief that ethics can only come from religion, and negative attitude towards abortion makes me think you're coming from a conservative religious community. No offense, buddy, but why are you here? Like I'm not telling you to leave, I'm just wondering how you ended up on a cam model forum. Are you here to convert people or what?
Uhh, I think you might want to rethink what you wrote there. That is, after you enlighten yourself with what a secularist is.