She might not "deserve" anybody's votes, but you are also voting for a lot of other outcomes besides just "for" a person, such as Supreme Court nominations, cabinet appointments, judicial appointments, how the DOJ, EPA, and other federal agencies are run, etc.  She also holds the veto pen assuming Republicans manage to keep hold of the Senate, the House, or both.

Your high and mighty "principles" aren't worth shit when you're dealing with the reality of a disjunctive choice between the two major party nominees in this election cycle.

It's also beyond condescending for you to tell black people who does and does not deserve their votes - I'm pretty sure black people are fully capable of figuring that out for themselves and voting accordingly.