The idiot leader we have here will do nothing. I remember when England had a backbone and the people would have stood up and said enough but not any more.
The UK will probably be the 51st state before Canada..
I feel like this is how it starts. Something relatively minor, like banning books, but that escalates to throwing legal permanent residents into a foreign megaprison, then claiming that "They're under the sole purview of that other country, we can't do anything" when asked to bring them back.