Take a look at 980 in the middle that destroyed two blocks width of homes straight through the middle of the city, miles long. That disconnected communities on either side of it. The same thing happened with 580, which isn’t shown in these overhead photos.
You're not going to tear down homes in the Oakland Hills to build a freeway not because it's full rich white people, but because it's nowhere close to the existing freeways.
The new highways were clearly connecting existing major roadways?