A write in and obviously a no vote is a waste of your vote. As a Christian, I think you have a obligation to support the candidate who closest represents the values you stand for.
He may not be ideal, but he is the best we have at this time.
If you really want to show your disgust for current political parties and/or candidates, then run for office, if you can, or donate your time or money to someone you like for the next election.
Now though, the horse is out of the barn ( I thought you might like that saying
) and you should vote for TRUMP.