Taken from (https://idioms.thefreedictionary.com/):
"Take (one's) ball and go home".
Meaning: To be so petulant in dealing with adversity, loss, or rejection that one quits or leaves abruptly, often disrupting other participants in the process. The image is of a child who leaves with the ball, thus preventing others from continuing to play the game.
Examples:
"I didn't lose, you guys are playing wrong! That's it, I'm taking my ball and going home!"
"I've heard that this new artist is a little temperamental, so, everyone, please be on your best behavior so he doesn't take his ball and go home."
I wish so too but the fact is that it is very hard to just move to another country. They make it so.
Best case scenario get on a raft and float in as a refugee.
Note these people all want to emigrate to wealthy white countries. No one is looking to go to Somalia or Yemen.