An election campaign must be strategized around the fact that they would never be allowed to win. Seriously, if Cornell West ever had a chance of winning someone would literally kill him. If that’s the party strategy then the party has to be prepared for that inevitability.
That’s not a bad strategy, if you can find a candidate that’s ready to die for the cause, bt that is the only possible outcome of some kind of whirlwind third party campaign that beats all the odds and has an actual chance at winning the presidency.