When any civilization does so, it's days are numbered.
Adultery is a sin, but, it is NOT the unpardonable sin. Did you know that God is a divorcee, spiritually speaking. (It is Written and found in Jeremiah 3:8) God also said that homo acts are an abomination and He destroyed Sodom and Gomorrah because of their sex obsessed agenda. Wonder what is in store for US given our nose dive into abomination?