Don, the choices offered by the Republicans are not better. You are looking to have the Democratic party, a party that I belong to, get their act together. That doesn't help. It is a band aid to fix the bleeding, but it doesn't prevent the cause.
We need choices and NO ONE throws their vote away by voting for a candidate of THEIR choice. You may not like the outcome, but it the process that is the issue, not the act of placing the vote.
Your strategy to get the Democratic party into shape makes sense, but it doesn't fix the problem.