@parados,
Discriminatory practices were there for lots of reasons.
Sure minorities were redlined in anything from water fountains, bus seats to insurance and banking at one time.
It got political, but banks being businesses must have had other reasons too...like making what they thought were sound transactions. But every community needs an influx of finance and investment....someway, somehow someone has to do it.
I worked for a company 20 years ago that rented products...but there was one area that was definitely redlined, but only after too much money was lost and too many employees were put in dangerous situations. The area happened to be a minority occupied one but that had nothing to do with the redlining...it had become doing business at too much risk.
Even the company I work for today has redlined a few locations where they will not deliver too for the same reason. Different than banking, granted...but just for example.
So since before 1930 when redlining began there could have been lots of reasons besides a few neighborhoods in Chicago that felt wronged.
Being a business person I cannot accept the narrow view that redlining in every case was racially prejudice, or minority prejudice as you framed it.
I think the creation of CRA was a good thing...though I may not agree with the unintended consequences.