It’s also just not realistic in the US right now. Some students are not American and don’t want to be, which is normal. Why should they (especially, but honestly anyone) be expected to pledge allegiance to a country that isn’t and won’t be theirs?

As for the second part - I could maybe have pushed my dad to move house when I was in school, if I’d pushed incessantly and had a very good reason, but I could not have actually had an impact on what country we lived in. I can’t imagine many high schoolers do.