I'm definitely not a moral relativist, so I do recognize that some societal values are better and more ethical than others, which is turn makes some cultures better than others. I usually feel disdain when I see cultures that subjugate and brutalize it's people. I don't have sympathy for the argument that it's just their culture and not to criticize it when people suffer at the expense of being tolerant to certain societal norms.
If the hypothetical idea of an afterlife means more to you than the objectively true reality we all share, then you deserve no respect.