Brexit was the best experiment for that. They kick immigrants out so all jobs went to the local population. People didn’t want them, produce was left in the fields, deliveries were not made, tables were not waited on and some companies folded. Anyway, immigration is now back and higher than it used to be, but from other countries.
A bit searching confirms this. Turns out brewing beer was considered women’s work originally, something done between taking care of the kids and making dinner.
Women were in general accused of being a witch because they did most of the child care, sick care and other jobs concerning people. If somebody died, and lots of people died of disease, bad hygiene and so on, they sometime blamed the nanny or nurse and called her a witch that cursed them. Men usually worked with inanimate things or animals where chances of being called a witch were much lower.
We already know how to create plastics from CO2 extracted from the air and hydrogen from water. There is no shortage of raw material for plastics. The main question for the industry is cheap plastics and the answer to that has always been cheap oil and gas.
Using proven reserves and current consumption you get to 47 years and things run out. That’s a “within my lifetime” number for many.
There is no karma system so no people shitposting and reposting as much to pump up their score. Without this kind of gamification there is less noise.
India, China and Nigeria.
So yeah, that voting for Brexit “to keep our brown people” didn’t turn out like they thought it would.