Then you subsequently state: "Organized religion is, IMO, always a threat to freedom."

Sharia law is a monumental belief of an "organized religion".

That being the case, your first statement is at odds with your last statement.

I suggest you do an internet search on:
"sharia law in europe"
for additional information. You'll find it is making progress in many countries there. Limited, but that's just the first of many steps Sharia law will undoubtedly pursue. Like many efforts by many entities, an inch at a time will suffice. Particularly when they don't even merit an inch.