The other side of why this makes "good sense" is the temptation angle - you can't get tempted if you don't have an opportunity. Unlike what the lefties think, Christians are people too and they get tempted just like other people, especially when drunk. Men are like recovering addicts when it comes to mating (all heterosexual or homosexual men with regular levels of libido are like that, if you say this doesn't apply to you, you are a liar). Resisting a beautiful woman/man flirting with you is like being a heroin addict trying to not shoot up a dose in front of you. Of course you can resist, but it's hard, requires a lot of self control and most people are incapable of doing it without first experiencing the drawbacks. Is there another option? Don't put yourself into that situation in the first place... if you're married, there's no reason for you to be alone with likely sexual partners when alcohol is involved. All the cries about "sexism" of what Pence said are absolute nonsense and probably stem from the left's disrespect of traditional family values and marriage (they don't see having 50 partners in a year as a problem and an "open relationship" is almost a goal for them). There were multiple cases this year (not two, but like a dozen) of self-proclaimed male feminists who supposedly "trusted women" and "trusted themselves to demonstrate appropriate behavior" who should be the beacons of proper behavior when it comes to "respecting women" who ended up being sexual harassers, rapists or even murderers in one case. Does this prove anything? No, but it illustrates that "trusting yourself" is easy to say and hard to do even if your stated goal is exactly that.
Not that it matters, but since this accusation is very likely - no, I'm not a Christian... or a Republican... or an American.