As for 3, regardless if it's true or not as it's also quite subjective, you need to also ask yourself the question whether that's really desired, or, whether th

As for 3, regardless if it's true or not as it's also quite subjective, you need to also ask yourself the question whether that's really desired, or, whether the society has the moral right to ask that. Think about Jews during the ages - they survived, their culture survived in exile thanks to that. In an ideal world, the majority would just appreciate the variety, in the actual world the minority will always suffer by just being different, though. (Grave incompatibilities aside, such as underage marriages and other ways of harming people.)