>Can people in other societies have a say about what they want in the matter in their own society, or your also prefer the norms of you and your society imposed upon everybody?

Of course people in other societies should have a say in what they want in the matter of their own society. I just prefer they come to the same conclusion mine has, since it’s the superior one in many respects. (Not all aspects, of course — there is no “perfect culture” or “perfect system”; all of them have downsides in some aspect)

>From that I’m sure you can guess my own nationality. Is it one where foreigners massacred and replaced the native population, took their land, relegated them to specific areas, and even took their children and closed them in camps? I guess those natives were xenophobic too.

The genocide of the peoples indigenous to North America is a black mark in the history of the United States, as is slavery. Neither has been adequately remedied, and I’m unsure it ever will be. The US has a lot of work to do on both of these fronts.