You can campaign for an amendment to give up American's right to self-determination if you want that but you don't get to just decide to do that on your own.
The "right of self determination" does not exist in the US constitution or law. It's a rhetorical slogan coined by Woodrow Wilson, and his idea of "self determination" came from growing up as a racist southerner who felt the South should have been allowed to self-determine a continuation of chattel slavery.
How this has anything to do with the immigrants in my city trying to live normal lives, perhaps you can explain.
