Per Craighead's interview on SRS he didn't immigrate for career, he's basically renounced his UK citizenship because he sees England as a "fallen state" and he goes into detail about a conversation he had with a London cab driver that congratulated him on leaving the country.
Craighead also wrote a children's book called "The Wrong Wolf"
"From the very start, the Wrong Wolf knew he was different. Over the course of a journey marked by loss, mercy, courage and self-sacrifice, he learns that where and how you are born does not always determine where you end up"
"This book is dedicated to all the wolves living in the wrong pack."
I can only imagine what a British SAS member would have to go through to become so disenfranchised with his home country; but I also see it as a glimmer of hope for our nation that a man of that capacity would not only choose the country that I was lucky enough to be born in but also the state of Texas I was born and raised in.
The intellectual & abled bodied refugee may well see their chance to enact change in this world from a location other than where they were born; or both see that their native lands may well imprison them for speaking out.
Jordan Peterson has openly said that he believes Canada would ultimately start putting people in jail for speaking out against the government in Ottawa; to which the interviewer told him that he wasn't being jailed he had simply been FINED for views on compelled speech, to which Peterson replied......
"What happens if I don't pay the fine?.... I go to jail"
Much the same in the UK - This couple was arrested in England for speaking out against their child's school board in a whatsapp message.
They were later released and the investigating detective said there was no evidence to charge them with any crime.... But if that is so, then how did SIX police officers end up at the house with an arrest warrant?
Point being.... You can't blame the hero's of a nation for leaving a country that persecutes them.