“What happens when just telling the truth about someone is taken as an insult?”
In a case such as that, it is proper for you to just submit, and perpetuate the lie, since telling the truth is divisive, and offensive, and the adults know best, and just have faith.
Jane Curtain and Dan Ackroyd would admire that sample of deep sarcasm. (not sarcasm)
Certainly, in real life and also not sarcasm, just to be clear, apologists for Islam would absolutely agree we should act that way!