Sorry, they've been selling us this snakeoil for 50 years and yet, things keep getting worse.
The more we move to the middle, the more they move to the left.
Candidates who are truly freedom loving Constitutional conservatives shouldn't be ashamed of their/our beliefs. If we lose, we lose honestly and can assess other options. If we "win" with a puke like Rauner, all we're getting is the death by 1000 cuts.
So you solve the problem by ending it all?
You should have every reason to be ashamed of fallacy.
The place to concentrate on personality is at the primary level. Once you are past that, you play the cards you got. Acting like a recalcitrant baby never gets you forward.