Flint (Michigan) was a thriving city in the 20th century due to General Motors, which provided 80,000 workshops.
At the beginning of the 21st century, that number fell to 8,000 employees.
High unemployment increased poverty and crime. Half of the inhabitants (100,000) left the city.
"The most dangerous city in the US with 100,000 or more inhabitants"
according to FBI statistics.
https://www.mlive.com/news/flint/2021/03/dolly-partons-imagination-library-distributes-over-200000-books-to-flint-kids.h… 
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Flint (Michigan) was a thriving city in the 20th century due to General Motors, which provided 80,000 workshops.
At the beginning of the 21st century, that number fell to 8,000 employees.
High unemployment increased poverty and crime. Half of the inhabitants (100,000) left the city.
"The most dangerous city in the US with 100,000 or more inhabitants"
according to FBI statistics.