RE: nationalizing mines Yes many US citizens are trying to escape the evil Obama and move to Colombia. Cocaine is much cheaper there so the cost of living is less than half with this great discount.
"In the 1940s, the Colombian government nationalized the mines. This led to rampant corruption. The government bureaucrats who oversaw the mines looted the private company profits. After 900 deaths in the 1970s, the Colombian government shut down the mines."
https://www.preciousgemstones.com/GFspr96one.html
https://www.mining.com/eco-oro-shares-plunge-on-colombian-mining-agency-ruling-73373/
https://worldpress.org/Americas/3931.cfm
https://cbernblog.ca/2012/08/resource-nationalism-in-latin-america/
Colombia is much safer than the USA too:
"With the highest murder and kidnapping rates in the world, cocaine cartels and a long-running guerrilla insurgency, Colombia is often referred to as "Locombia", or the mad country."
Even Mexico nationalized foreign properties in the past:
https://en.wikipedia.org/wiki/Anaconda_Copper
https://www.answers.com/topic/nationalization
Better move out of the dangerous USA to these much safer countries.