However, many believe that this is the case. The erroneous belief does tend to keep crime down.
https://www.gov.uk/government/publications/applying-sharia-l...
What about a secular state that doesn't want to become an Islamic state, but has a significant minority that has the opposite wish?
AFAIK this is the most important common political problem across the Islamic world. Many organizations such as the Muslim Brotherhood want to Islamize their respective secular countries, some by peaceful means, others by violence. There has already been at least a dozen civil wars around that issue.
No. A tolerant, secular, liberal state should not respect the will of its people if the will of (the majority of) its people is to become an intolerant, religious, oppressive state. It is OK -- possibly even necessary -- to have a set of core founding principals which must never be abandoned.
Also having “core founding principles” doesn’t mean that they are valid or that you got them right from the beginning.
This is majoritarianism. Not liberalism, and certainly not democracy.
> respect the will of its citizenry, whatever it is
How do you define that? Is it always what the majority decides? What if the liberal secular government knows that going along with the will of the people will result in a minority of the population losing most of their rights and potentially suffering extreme oppression?
One could could assume that after learning what happened in Germany in the 30s (and some other comparable situations) most people would agree that even liberal states need to draw a line at some point.
This is ridiculous, quite frankly. You don't have to approve of every law a foreign people have to not want to basically terrorize them with a despot
Few people care if you believe that Muhammad rode to heaven on a magic horse (Buraq). But quite a lot of people care if you want to introduce hand amputations for theft, as demanded by Sharia Law, or different inheritance rules for sons and daughters where being female = being less valuable.
The medieval-practical parts of Islam must definitely be kept in check, unless the country in question is willing to regress into some very dark ages. That is something that Ataturk understood very well when reforming Turkey.