You must free your mind from the leftist framing of voting as a kind of religious act, a sacrament that confers grace and preserves democracy. For the left, voting cleanses you, and your participation in voting is a holy act in service of sacred democracy. Much of this sentiment was instilled among millennials with MTV’s “rock the vote” campaigns.
Once a vote is treated as a confession of faith, casting it feels like a personal endorsement of everything the candidate is. So Christians are laden with false guilt and moral confusion for voting for an imperfect man. You can pick up on this in the way some Christians talk about only feeling free to vote for someone who meets "biblical standards." Much of their judgment is driven by sentiment rather than biblical wisdom (e.g., voting for a non-leftist makes me feel icky). I see this in the way some Christians in Colorado think about voting for Victor Marx for governor.
Instead, embrace that voting is not merely a right secured by our forefathers but a duty and obligation you owe to your nation, your family, and the church. You owe it the same way you owe your neighbor his good.
I know duties and obligations make people feel less sentimental. People today don't like feeling that things are expected of them or required by nature. They think this makes things less "authentic." But duty asks a different question than sentiment does. Sentiment asks how the ballot makes you feel. Duty asks which available outcome is better for the people God has placed in your care. That is what is required of you.