There’s nothing blind about the black population’s tendency to vote Democrat. They can see just fine. On one side, they see a party with a white nationalist base, a party that panders to people who hate them and want to exclude them from society, rob them, and even kill them. And on the other side, they see a party that tries — imperfectly, sometimes even badly, but generally makes an effort — to protect them from that first party. That’s a no-brainer.
If the Republicans really want to appeal to black voters, they need to start by confronting and forcing out the racists within their party’s base…something which will never happen because it would collapse the GOP entirely.