How to easily defeat any argument for God

[Acrobat]

I’m not defending slavery, you’re the one that questioned why I don’t see wellbeing as a reasonable basis for morality.

You can use wellbeing, for a variety of things that are immoral (slavery) as well as non-moral, hence the reason I don’t find it to be a reasonable basis for morality.

I can agree that slavery is immoral, but is very well possible a reasonable argument could be made that it was beneficial to the wellbeing of society as whole especially in the long run, but this doesn’t make it any less immoral.

Yup, as predicted, apologetics for slavery. Take a long hard look at yourself. 

Is slavery immoral now? Yesterday? Last week? Last year? How about 2,000 years ago? Was morality somehow different then?

Grow up. 

The point is, since you want to claim wellbeing as an objective for morality. If slavery ultimately benefited our wellbeing in the long run, by 200 years of free labor, significantly contributing to why we're the wealthiest country today, have the resources, etc.. we have today. Would this make it no longer immoral?

If X contributed ultimately to a net benefit for well being, would it make it moral, in your view of morality, where well being is the ultimate determinate of right and wrong?