There is something known as a person having the courage of their convictions. Trump has no convictions whatsoever. Every Social/Political issue that he has made a statement concerning, he has changed that stand several times in the last several decades. A "backbone" suggest that a person has the courage to stand for their convictions no matter what, and not compromise them for Political expediency or self enrichment.
Trump ONLY cares about Trump. Enriching the Trump Brand.
Now, if you see this as having a backbone, vote for him. Your choice. However, do not suggest that those who recognize the lies he has told, the hypocrisy his public life has exhibited, his bigoted comments for the last eight months, and his bragging about paying off Politicians to get what he wants..............do not suggest these people are wimps or some such. Many of us Christians HAVE the courage of our convictions, and we WILL NOT compromise them just to win an election.