Question about Islam. Yesterday my friend posted something on Facebook that has the potential to make people very angry, so be warned

Read the song of Solomon.

You should be thoroughly grossed out if that affects you.

Different times, different values throughout ALL religions.

You think not? Try left hand path of ancient Hinduism. No it's not talked about in this day and age. Yet the shrines still exist.

Caligula of Roman beliefs. His own sister at that.

Nyx of greek beliefs. Her own son Eros. Same with Zeus. Demeter his sister.

I really can't think of a religion that never had such controversies.

Abraham bought two underage sisters as wives. That covers all Abrahamic religions along with polygamy. Yes Islam is Abrahamic.

Fondle her? You're using terms to describe a 20th century Catholic Priest to describe a 7th century situation.

This probably refers to them pouring water over themselves from the same source. Bathing in the desert, which involves using towels, is quite different from soaking bath tubs.

He probably married her when she was 9 or 10, but it fits the practices of the time.

I would never justify anything with a minor. It is completely wrong.
Some fundamentalist clerics do want to push it. Most Muslims are against it though.

Sadly, this is common in all Abrahamic religions. Mary was a minor when God purportedly impregnated her.
Further, there is the biblical rape of a three year old girl in the Old Testament.