White people liked him - and they’re the majority of this country.
Yes.
People are dodging the obvious answer to OP's question.
As a voting bloc, Black voters can shift national elections between candidates with similar white support. But a candidate cannot ride into office strictly based on the Black vote. Even if they get nearly all of it.
Reagan rode into office campaigning on restoring American strength and power. Carter was viewed as soft. Reagan washed him in 1980, and then landslides Carter's VP (Mondale) in 1984.
==
Reagan was SUPER popular. Mondale was expected to lose so he said fukk it, selected a female VP. In 1984 climate that was bold, and GUARANTEED that he would lose.
For younger fans of Wutang, this GZA line from the first album summed it up.
"I gamed Ella,
the chick caught a fitz like
Gerald
-ine Ferraro,
who's full of sorrow
''Cuz the H* didn't win but the sun will still come out tomorrow
And shine, shine, shine like gold mine"
Wutang threw their Congresswoman under the bus