Someone using that example as a why still has to explain why its universal and any “better” than a contrary opinion would be.
Even in comparing two opinions on right and wrong assumes an objective standard. That objective standard has to come from somewhere, or it’s arbitrary and futile and invalid.
Unfortunately MrB, some concepts are simply beyond some people’s critical-thinking ability.
There’s no ‘there’ there.
Because it’s the winning option. All others lesson the chance for survival and perpetuation of the species.