No culture is superior to another

That's exactly like saying 'I've grown up in the UK so I know everything and my morals are superior to yours'. Its this western culture that has granted the arrogance of imposing our own socialised beliefs on other people. Everyone has been socialised into their own morals which vary universal there is no objective standpoint. Again the Human Rights Declaration or the United Nations which you linked to was made by western society and is often used to impose values on to other societies. Just because there's been efforts to establish morals across all societies does not make that an objective moral it will, and always will be subjective. You're also solely looking into the modern world which is entirely different and has massively changed from historical times. Slavery is not universally immoral it has been done in a ton of societies https://www.marxists.org... in these societies it has been deemed morally acceptable. I can also list tons and tons of societies which homicides have included a central part of their society. E.g. China(mainly trying to emulate European success with the industrial revolution), Russia (Stalin), Great Britain (the empire) , a few African countries etc. Okay I'm going to take a step back. I will make a list and you can argue against this list trying to disapprove and affirming your own ideas. And voters can vote based on who they think won the argument. - Objective morality stems from well-being as you said so your self there shouldn't be slavery. Yet who dictates this well being we do! What is the perfect well-being tends to be judged from interpretation and emotions and thus subjective. - Lets take a more overview of it there are probably billions and billions and billions of species and intelligent life around the universe. Humans are one of the species and the objective morality is central around human welfare. And since this the objective morality, it must apply to every single species if they do not follow this moral code then they're immoral... you can see how incorrect this is and indeed moral is bound to be different for each alien species. - There's no single universal moral found across every society or culture even murder was deemed socially acceptable in the peak of the Soviet Union (Stalin was very paranoid), tons of subcultures and cannibalistic tribes you can also perhaps even make the stretch to Aztecs and also read Broken April by Ismail Kadare. It's about the blood feuds between clans in Albania in the 1920s-30s. The murder of men from one clan by those of another is not only legal but expected and even glorified. Also murder is found to be outlawed in so many tribes because its logical, the tribes that do allow murder have probably gone extinct. And we have established that slavery and homicides are quite common actually even ants do it. (Yes ants do slavery which is pretty cool actually). For more information: http://www.revue-klesis.org... (not on how ants do slavery you have to search that I'm afraid :( ) - Also I'm going to make a loop back to how people say God made the objective moral code. Even if God was real so did Satan and other human being each making a moral code. Who's to believe? The answer is subjective none is more Important then the others. - It is undeniable that every society has a different way of socialising their children. X has a different way from Y thus X's morals are not superior to Y because they have completely different beliefs and any perceived importance over the other is just perceived and is subjective. Any other belief is mainly from arrogance of their opinion and morals thinking they're superior to other cultures (mainly stemming from religion). All this eventual points to that morality is indeed subjective and no culture is superior to another For a good read that supports my argument but its a fascinating read nonetheless is https://coelsblog.wordpress.com... Thank you for debating :D. It has been fun and interesting talking to you.