It seems counter-productive for a Bernie Supporter to directly or indirectly vote for Donald Trump as their fundamental values are incomparable.
If their vote is purely to protest the way the DNC chooses it's candidate, or if Bernie fails to win the primary's majority, then it seems to me that Bernie or Bust people don't even care to listen to what Bernie Sanders wants and are not so fervently supported of his issues as they so claim.
Methinks they doth protest too much.