The future is not hard to predict. Of course, someone could drop dead, or there could be some cataclysm, but with 99.9% certainty either the republican or democratic nominee will be elected.
And in the end, the only way a candidate wins is by getting more votes than the other candidate. Because of the electoral college, one can easily “not support” or “not vote for” the republican candidate, and it won’t make any bit of difference — for most states, one or the other candidate are guaranteed to win that state.
But that’s not very “prinicpled”, to say “I get to follow my principles because I know there will be no consequences”.
As to your “principle”, I don’t want to put words in your mouth, but in my opinion your principle is really “I won’t support evil, even to stop a greater evil”. You don’t really get to just say “I won’t support evil”, and pretend that this choice doesn’t have consequences.
In World War 2, The United States allied with the evil Russian Empire, in order to stop a more evil German empire. By your principle, we should not have done that, even if it meant Germany took over the world. I’m not deriding your principle, I’m trying to take what you say as truth, and suggest the logical consequence of your argument.
Luckily I didn't say that or anything like it. Nor would I ever say anything as idiotic as "following my principles isn't principled." LOL
As to your “principle”, I don’t want to put words in your mouth, ...
You already did.
Take abortion. If your choice is between two abortionists where one wants to kill the baby after it is born if unwanted and the other does not there is a difference. Yes, they are both evil. That's the reality of life. By choosing not to fight the greater evil more actual people, not make believe people, real people, are destroyed as a consequence. I don't believe God will reward people for that choice. A choice that cost them so little and others so much.