The US has a first-past-the-post voting system almost everywhere, so your actual choice is either a Republican/Independent™ who votes as a Republican, or a Democrat/Independent™ who votes as a Democrat. Unless there is some sort of ranked choice voting, a third party vote is a spoiler vote that helps the losing candidate.
Right-wing authoritarians are going to come out in force to vote for the actual fascist candidate in the election. That means a solid 40% of the population will crawl over glass to elect a Trump, DeSantis, Cotton, Hawley, Taylor-Greene, etc. The only thing that matters is that a rightful authority figure who self-identifies as an in-group member with the right-wing authoritarian is in control. The fascist doesn't even need to practice what the right-wing authoritarian preaches, just that they identify with the right-wing authoritarians. It's why their "hypocrisy" is irrelevant to right-wing authoritarians.
So...the only voters your imaginary "Good Republican" ticket are going to get are a few percentage points of Republican brand voters who would otherwise vote for the Democrat because they can't vote for the outright fascist. There's not a lot, but each vote matters. Literally. Look at how Trump won 2016 with 78,000 voters spread out in Michigan Wisconsin Pennsylvania. Or how Biden won 2020 with 42,000 voters spread out in Georgia Arizona Wisconsin. Every +1 vote counts, and every -1 vote hurts the should-have-won candidate. Let me explain.
In a democratic republic, a good citizen votes for the better candidate in every election... or if in our intentionally shitty first-past-the-post voting system, the "lesser evil" candidate. That's right, a lesser evil candidate is better than a perfect candidate who has no chance of winning. Every time. Without fail. Because otherwise you're tacitly approving of fascism. If you want to make your vote count, you either vote for the non-fascist Democrat, or you vote for the fascist Republican. Otherwise it's just a proxy vote for whichever side you DON'T want to win, as you should have made your vote count by voting for the candidate who is the lesser evil. Full stop.
And there is math.
If there are N amount of total voters, than a vote for a Democrat is D+1, a vote for a Republican is R+1 and a vote for a third party or non-voter is -1. A winning candidate needs (N * .5) +1. Democratic candidate wins when D= (N * .5) +1. Republican candidate wins when R= (N * .5) +1.
Every -1 vote helps the losing candidate, since it would have been added to the winning candidate's total to take them over the (N * .5) +1 required to win. That +1 after the parenthesis is the vote that "turns" an election. This is also why, literally, every vote matters, even when people say that their particular vote wasn't the deciding vote. Big numbers can confuse people: a 68 story building isn't 68 stories without that lowly 1st story.
For example, a Republican who wants to murder abortion providers and decrease funding for children but who can't support an outright fascist should be a D+1. If they instead vote for Mickey Mouse or stay at home to binge watch Storage Wars, then their vote is actually D-1, decreasing the total of D votes. It's the same way with a woke communist trans groomer who hates America. They should vote D+1, but if they instead vote for Jill Stein or some other Russian asset, it is a D-1 vote.
D-1 = R+1. A vote that should have been counted for D that wasn't cast/counted, is one entire vote removed from the D total, and is one less vote a R needs to reach (N * .5) +1.
R-1 = D+1. A vote that should have been counted for R that wasn't cast/counted, is one entire vote removed from the R total, and is one less vote a D needs to reach (N * .5) +1.
So, voting third party, or staying at home, is a vote for whichever side you believe is more evil. Math. Deal with it.
And the above is true with fascism. A good right-wing authoritarian who fails to vote or votes for a third party is actually a R-1 vote, hurting the Republican candidate and fascism in general. Fascists call them RINOs. I call them tenuous non-fascists. And those mother fuckers need to start making the correct voting choice to make up for the fascist monster they've been enabling the past 40 years. Giving them some Zombie Washington/Space Jesus ticket is just more BothSidesDoIt™ bullshit that is silently but affirmatively enabling fascism.
/rant