Singapore deports every hardline Muslim scholar from its country who belittles other religions and claims his own religion is superior.
The most well-known example is Imam Nalla Mohammad Abdul Jameel, who gave hate speeches against Jews and Christians in the mosque. The Singapore government deported him the very next day.
There are more examples along the same lines,
Zakir Naik, Abdul Somad, Ismail Menk, Haslin Baharim, and Aamir Hamza. These are all Muslim scholars from different countries. Singapore does not even allow such people to enter its country, or if they do get in, it immediately throws them out.