"How Do Bill's Peccadillos Relate to Hillary's Presidential Qualifications In Any Way?"
Basically, they don't. Mrs. Clinton did not encourage or force her husband and any woman to engage in sexual relations with anyone other than herself. What Mrs. Clinton did do is decide that she was more inclined to remain married to Bill Clinton rather than divorce him. That said, the Clintons agreed to marry well before Mr. Clinton's dalliances and it's almost certain that one of the vows to which he and Mrs. Clinton agreed is to "take each other for better and for worse."
Mr. Clinton's sexual infidelity is certainly part of "the worse," and Mrs. Clinton held true to her promise to stick with the marriage in spite of an aspect of "the worse" materializing. That's her choice, not anyone else's, and, frankly, it's a very difficult one to make. By far, it's easier for one, especially the one who was betrayed, to end a marriage than it is to see it through the challenge of infidelity and put in the effort to make it work.
I'm not about to try to sit in judgement of whether or why someone should or should not remain married to their spouse in spite of whatever that person may have done. That's none of my business. Indeed, it's nobody's business. Truly, our nation needs more people who exhibit the courage to stick with their marital commitments. The fact of the matter is that with regard to two individuals electing to wed and then one of them later opting to end the partnership, there are only two possible things at the root of one's having made that choice:
- One's spouse deliberately misrepresented their true character to their betrothed. The downstream consequences of that, and that the other party got betrayed, are certainly the prevaricator's fault.
- One's spouse did not misrepresent their true character; thus the person who got betrayed was, at the time of agreeing to marry, a poor judge of character. The downstream consequences of that, and that the other party got betrayed, are the fault of the person who was betrayed, and their failing was in opting to marry before they had achieved the levels of maturity and intellect to know better than to have married whom they did.
I cannot say which of those two was the case for Mr. and Mrs. Clinton, but I can say that whichever it was, they found a way to overcome the problem. For that, they are both to be commended.