>>>>Ban on certain items of clothing that is alien to our culture.
>>>>Restrictions on the type of architecture
While I see where you are coming from AOG, I think some of these "rules" would impact the local population as well as any immigrants.
So, for example, fashion has changed over the centuries so who decides what is alien? In the 1970s we had punks with spiky hair and zips all over their clothes, that could be considerded alien.
Many young men nowadays walk around with their trousers round their hips showing their underpants (which I have to say looks stupid). Is that alien, and do we ban it?
The men who parade round horse guards parade on the Queens birthday look faintly rather silly in their bearskins and outlandish clothes, do we ban that?
And if Ghandi had come here in his white "sheet" would we have banned him?
Also with architecture, do we ban the Gherkin in London, or Selfridges in Birmingham (with the silver dishes all over the building) because they are different?
If you do then you stifle all creativity within architecture.
So while I understand your motives your "rules" are somewhat misguided.