>But if there were no "religious sentiments", there will be no law.
Which is no argument at all. It's like saying, "if there weren't blacks, there would be no racism".
You can have restrictive laws based on everything, no need to single out religion. Sources of restrictive laws range from health (like the drug laws), to tolerance (no hate speech), to patriotism (too many to mention), to children (internet censorship etc).