You can discuss about everything without being offensive

A " caricature " of Jesus or Mohamed is , in my opinion , much more offensive for a Christian or a Muslin than a direct critic to their religion

Probably it was not your intention to be offensive but for sure you showed little tact or no tact at all

Your thread might have been " Did Jesus Christ really exist ? "

As far as I know the existance of Jesus Christ is out of discussion
An other matter is " Did He make miracles or at least something special ?"

The latin writer Plinius the old, gathered extraordinary events from all over the world, India and Cina included, but he never mentioned Jesus Christ even though Palestinia was under Romans' domination at the time