What “other” culture? Aren’t we all Americans, and shouldn’t we all abide by the same laws? Otherwise, it’s pure anarchy.
Are we a multicultural society or aren’t we?
If we are, why should the right to be different be limited to ethnic groups? Why not belief groups?
To be honest, I’m being sarcastic. But this is exactly what liberals believe, or claim they believe. If it’s okay for Muslims to marry multiple 12 year old girls, why not fundamentalist Mormons?
If you accept the IF, there is no logical reason. Personally I don’t accept it, for either group. If they want to live in this country, they can obey the same laws as everybody else. Or leave. Or go to jail.