The 45 RPM adapter is this already, between generations.

Fascists lie.

As a reminder, Eich was turfed from Mozilla for joining an anti-LGBT hate campaign (and thus alienating a whole lot of developers, sponsors, and users); and his So Brave browser pushed NFTs and stole money via referral fraud.

exploiting the fact that literacy among blacks was lower

That wasn’t the exploit. The exploit was twofold:

1. Whites didn’t have to pass the literacy tests. For instance, in some states any man who could show that his grandfather had voted, was assumed to have the right to vote, without having to take a literacy test. This is the origin of the terms grandfather clause and to be grandfathered in.
2. The literacy tests were rigged with trick questions, geometry puzzles, and outright nonsense questions; so they did not effectively test literacy anyway!