Redlining of minorities by banks is well established factually, you can look it up. So yes you can and should blame the banks.
"" Yes, as through this world I've wandered
I've seen lots of funny men;
Some will rob you with a six-gun,
And some with a fountain pen.
And as through your life you travel,
Yes, as through your life you roam,
You won't never see an outlaw
Drive a family from their home. ""
--woody Guthrie