Objective Morality, Anyone?

[Mudhammam]

Sadly, burning people alive goes all the way back to Old Testament times. The Israelites generally preferred stoning to death, but there are a few "crimes" for which burning was prescribed—if I remember rightly, fucking an animal was one of them, and both human and animal were to be burned to death.

What this goes to prove is that cultural conditioning (deciding what God wants) can overwhelm the evolutionary foundations of morality, such as empathy and a sense of fairness (punishment proportioned to the offence). I mean I feel that having sex with an animal is slightly creepy, but burning alive?????

If morals are subjective what arguments you gonna propose against lets say bullying? Bullying comes from evolution.
Lets say there is a continent on which bullying is considered fine thing. How are you gonna argue against it?

With a big gun.