Consider the beliefs of evolution/atheism, also known as “Darwinism:”
There is no right, wrong, good or evil. If you kill 153 people and nobody finds out, what makes it wrong?
Everything that exists is a random collection of chemicals with no purpose.
Why help anyone else with anything? Survival of the fittest rules the day.
Horde all the material possessions you can for yourself, because that’s all there is.
Love does not exist, just chemical reactions that are a result of randomness.