Most of the people I’ve seen celebrating are our own citizens.
Anyone celebrating terrorism should be expelled.
Now look at designating Antifa as a domestic terror org.
Anybody that views murder as a legitimate means of dispute resolution needs to be deported, exiled, institutionalized, locked up or otherwise separated from mainstream society.
Someone in your family is murdered.
You may not have known him.
You may not have agreed with him.
You may not have liked him.
But he was family and he was harmless.
And someone who is in your house as a guest started trash talking him and celebrating his murder.
Do you.... A.) Allow that person to stay or B.) Firmly show them the door.
If you do not do B you are pretty much a wimp.
There are somethings you just do not do in other people's houses. Or countries.