Sandyroe - "... "...Only Islam makes this astonishing claim - that to have a dislike of Islam is to have a mental illness... I'm genuinely interested, where and by who is this claim made?..."
As I've previously said, you're being deliberately obtuse. As to whom is making this claim, well, Islam as it happens. The word "Islamophobia" is a word that has been invented by those who wish to protect Islam from criticism. It's a disingenuous, evil and clever word that leads people (who don't think too much about language and how it is used) to believe that to speak disparagingly about Islam is to have a form of mental illness.
Please think about this. As I understand it, you're a Christian. There is no such word as "Christianophobia". Nor is there a word, "Sikhophobia", etc. It is not considered a form of mental illness not to believe in the literal existence of Jesus is it?
Do I have to spell it out even more?