TJIC has a great roundup of 20th century lending regulation:
Once upon a time, when we had a free market, bankers made loans to poor people.
Then, FDR came into office, and he and the Democratic Congress
passed laws to pressure banks to stop making loans to poor people.
Then, in the 1980s, Democrats heckled banks for not making
sufficient loans to poor people, and pass laws to force them to change
Then, in the 21st century, Democrats heckled banks for making
too many loans to poor people, and passed laws to force them to change