It still doesn't make sense to me. A Nazi could launch a campaign on killing Jews and mean it, I still wouldn't vote out of "the principle that he'd be true to his word".I wouldn't vote for any republican who supported Trump attempts to overthrow the election, either publicly or complicit with their silence or who supported Trump on anything but the policies they have always supported.
As far as Republicans and abortion they are honest about their wish to end it and fight to do so,something we don't get from democrats on nearly every progressive or people of color issue.