Sure of course, I was too vague. I’m not referring to our descendants having different values from us or myself. We do have some control over that, but not complete control, and exerting whatever control is available in the modern day risks future blowback. We are in agreement here.

I’m referring to the value of not persecuting based on ethnic or cultural background.

Not everyone in the world holds this value, and relocating to different land is not what makes a person hold one value or another.

So if groups who don’t hold this value grow numerically to the point where the lack of this value becomes dominant, we are putting our own group at risk of being subjected to it in the future, which seems rather unwise.

You shouldn't be OK with them having any random values, either.

If you have a civilization, you have a vision about life, and what's good and what's bad, and you want to see it to continue.

That some of them will inevitable change over time is not the same as you preactively having no preference and guidance for your offspring whatsoever, and thinking "no problem, anything goes".