I love the equivalency game both sides like to play.
What Harris did was something I'd normally see in a pretty negative light. "Sleeping your way to the top", so to speak. And in any normal situation, good strategy for her opponents to pick at it, and go after her for it.
But when the alternative is Trump...and just one of his transgressions, of many, is banging a porn star, while married, while his wife is pregnant with their child...not good.
Add to that Harris wasn't yet married for her most notable transgression. And since getting married, has seemingly been very happy, normal, monogamous...
Whether its a false equivalency or not (it is), but even if you believe it isn't...in most of the voters that matter, going after moral code stuff with Harris, when the alternative is Trump...not a good idea.