You have to look at it in terms of least damage.
Trump will appoint conservative judges. He will also destroy terrorism, curb radical Islam, and will support Israel.
Hillary will continue in the same street J Street trajectory, more concessions to Iran, more Muslim immigrants, etc.
Also, in terms of morality, look at Lo Tirtzach. Benghazi, Vince Foster, etc. should all be sufficient proof that Killary should be on death row now.