Kanye is officially running for President. It's doubtful he will top 10% of the vote, but he makes a viable protest vote for a central Democratic demographic. In 2008, Obama won the black vote 95-4. In 2012 it was 93-6. Clinton did not do as well, winning only 89-8. With roughly 30-35 million votes case, these represent net votes of over 25 million votes in all three elections. What happens if Kanye West attracts 8-10 million of those votes?
Aha, the Donald Trump wet dream scenario :lamo
Now let us go back to the reality zone. Most African Americans (on the main body of the US) live in DC, now Democrats on average win there with more than 85% of the votes. Even Hill got 93% and Trump 4%. Now let us think, 25% of all African Americans in DC would vote Ye (not going to happen but let's just imagine), well than Biden would only get 68% of the votes, Ye would get 25% of the vote and Trump 4%. Meaning Biden wins the 3 electoral college votes, nothing changed there.
Now let us look at the 3 next largest African Americans percentage share states, Mississippi (Biden zero chance so Ye could get all Biden votes and the result would still be the same), Louisiana (Biden zero chance), Georgia (long shot, not really likely), so Ye could get all the votes there from African Americans and it would not change a single electoral college seat.
Then Maryland (30% African Americans), now let us again say Ye wins 50% of these votes, normally democrats always get 60% or higher in the last few elections, now say Biden without Ye would win 63% of the vote, now he looses 15% so he is left with 48%. The election result would then be Biden 48%, Trump 35% (no reason to think he is going to do better than last time) and Ye 15% of the vote. End result is that Biden would win that state.
The only place I think Kanye could influence the vote is North Carolina, the only battleground state with more than 20% African American vote, there he could influence it. And Florida maybe. But in most other battleground states: Pennsylvania (less than 11%), Arizona (about 4%), Ohio (12%) the level of African Americans is not that large to have that much of an effect on the vote.
In most states the votes from suburban women who first sided with Trump will be enough to off set the young black vote loss to Kanye (if he is on a ballot in that state to begin with) and also, do you think a 55 year old black lady who goes to church every Sunday will go and vote Kanye? Not likely.