At the end of the day it is their land, don't forget that. We are only guests to their country, its a different if you trace your ancestry back to that land. Wherever God placed you to be birthed, you will naturally have more rights in that place as this is natural/divine law, especially if your ancestors were native to that land.
If their governments tomorrow decided that they wanted to send us back to our country of origin (this being highly unlikely), you can't fight against that forcefully if that's what the majority of their citizens want, otherwise you are an extremist disturbing public order. It is a different scenario if you are a native to the land and start fighting for your rights forcefully. But this is getting into hypotheticals which is far from reality...
The reality is this... You unravel situations moment by moment, as each situation is different. It doesn't matter if some idiot kids feel this way, this was decided by their governments, and you do what is lawful as a law abiding citizen. There are always going to be people who are going to want to fight and will find every reason and excuse to do so, this is just human nature, ignore them as they don't have power, bring their leaders to discourse and engage them, let the broader audience see the different points of view and they can then decide what they want to do. Whether they decide wrong or right, in the end you have to go with the majority's legal authority, and you try to do and act with the best of intentions lawfully... not un-lawfully or forcefully.
