Why hate Athiest?

[Confused Ape]

Atheists do not make any effort whatsoever to define how to be a good person.

See The Golden Rule.

The Golden Rule or ethic of reciprocity is a maxim,[1] ethical code or morality[2] that essentially states either of the following:
(Positive form of Golden Rule): One should treat others as one would like others to treat oneself.[1]
(Negative form of Golden Rule): One should not treat others in ways that one would not like to be treated.

Rushworth Kidder discusses the early contributions of Confucius (551–479 BCE) (See a version in Confucianism below). Kidder notes that this concept's framework appears prominently in many religions, including "Hinduism, Buddhism, Taoism, Zoroastrianism, and the rest of the world's major religions".[7] According to Greg M. Epstein, " 'do unto others' ... is a concept that essentially no religion misses entirely."[8] Simon Blackburn also states that the Golden Rule can be "found in some form in almost every ethical tradition".[9] I

Why should a rule for caring about others have turned up all around the world for thousands of years? Here's one possibility -
The Evolution Of Empathy