Nah, don't see it. I'm pretty active here in the center of OH---the county that won it for Bush four years ago---and know a LOT of the conservative activists. No one is staying home. They may prefer another candidate, but they are adamant about not allowing Hillary to win. Course YOU might sit home---then it's your fault, but not ours. We'll do our part.
In fact, of all the pro-life conservative church-going gun owners I know, only one has vowed to sit out. Everyone else plans to work hard for victory.