If Christianity promoted fornication, adultery and drugs

Nothing to do with Christianity, that is just a universal law.

Those kind of things destroys civilizations not built it.

Moral code is the problem.

Accountability after death.


If Christianity kept away from sex lives, it wouldn't be a problem for most people

Unfortunately sex lives DO matter.

People may hate to hear it because they are selfish and want to do what their lusts tell them instead of having some self control.

They then condemn anyone or anything that tells them they should restrain themselves.

C'est la vie.