Do you believe that would be the case if the same type and intensity of attack was waged against either Strange or Brooks?
Honestly, I think I'd be making a different argument. A nearby thread addresses when it may be okay to support a morally deficient candidate in order to defeat a larger evil. That argument would be appealing if it were Strange or Brooks hit by similar charges, because I think each is both conservative and qualified for the office he seeks. My issue with Moore is that he's scoffed at following the law as an officer of the court, and been removed for such misconduct twice as a result. An individual with such disregard for the Constitution and his oath of office has no place in the Senate. So, sex scandal aside, Moore is unfit whereas Strange and Brooks are not.
That's my messy, but honest, answer to your hypothetical.