I have always believed that voting your conscience, even if the candidate has little chance of winning, is the best way to vote.
The two-party system is ineffective and corrupting. And has been since it began in 1796. Voting a straight party line leads to people like Trump being elected.
But this year my conscience tells me that getting Trump out of office is the only thing that matters, so I will vote for whoever has the best odds of doing that.