JTC: *First of all, are you serious in saying that the immorality of slavery is strictly a matter of opinion? I daresay that any reasonably moral person would say that slavery is strictly wrong. *
“A matter of opinion” doesn’t necessarily mean “it doesn’t matter which opinion you hold.” The distinction I was drawing was one between opinion and fact. The question of what moral standards should be is indeed a matter of opinion; there are no universally agreed-upon facts about what the “right” morality is. There are many moral issues on which we do have a unanimous or near-unanimous consensus of opinion, and such a consensus (such as the one that slavery is wrong) is very important and valuable: but that is not the same thing as saying it is a consensus about facts.
*Look, I’m not arguing that hell exists, or that the Christian gospel is true. That’s irrelevant to the question at hand. I’m arguing about whether it is morally offensive for someone to express alarm about going to hell. *
That is also irrelevant to the question at hand. An important point that you seem to have missed is that I am not arguing against proselytizing or fire-and-brimstone-type preaching here. Strictly speaking, yes, it is a violation of etiquette to offer any unsolicited advice to anybody; but I am assuming that I’m dealing with people who consider the situation a dire emergency so etiquette has to take a back seat. I am not, in this case at least, telling you that you can’t warn me about the danger of going to hell; as I noted in my first post, I’ve got my answer ready, but I’m not trying to stop you from mentioning the topic.
What is unacceptably arrogant, as I keep pointing out, is for “conversionists” to draw parallels between the kind of emergency consisting in someone’s being about to fall off a building or die from alcohol abuse, and the kind of “emergency” consisting in someone’s not believing in Christian doctrine. If you say, “I believe that you are going to hell unless you become a Christian and I believe that it’s my divinely-commanded duty to warn you about that,” fine, you’re entitled to your opinion, I’m entitled to mine, we’ll leave it at that. Thanks for the warning.
But if you say, “It’s my duty to warn you of your danger just as it would be my duty to warn you if you were an alcoholic or were about to step off a tall building,” then that’s using sloppy reasoning to make yourself sound more important, and that isn’t okay. As several of us have remarked by this time, there is a serious difference between warning somebody of a danger that they acknowledge does exist, even if they don’t yet know that they’re in it, and warning somebody of a danger that they consider to be wholly mythical. People who warn heavy drinkers about the dangers of alcohol abuse are basing their advice on the assumption that the drinkers also understand that alcohol abuse exists and that it can lead to illness and death. People who warn others that they’re too close to the edge of the cliff are basing their advice on the assumption that the others know that F=mg or at least that gravity can kill you. In other words, they are operating on a set of shared premises in trying to help the potential victims.
Proselytizers who warn non-believers about the dangers of hellfire, however, do not have any shared premises with the “potential victims.” The “dangers” they’re trying to warn about don’t exist, in the opinion of the non-believers. Therefore, proselytizers who compare themselves to the helpful counselors described above are using sneaky and dishonest false analogies to make themselves and their advice sound more important and necessary. If you say, “I must warn you about hell because I believe God commanded me to,” okeydokey, that’s your belief and as long as your warnings don’t involve violence or abuse, I’m not going to tell you not to act on it. But if you say, “I must warn you about hell because it’s the same thing as trying to stop you from walking over a cliff,” then you’re a conceited self-aggrandizing liar who is dishonestly attempting to imply a connection with the sort of universally-recognized emergency that necessitates such warnings, and you better believe that I’m going to spot that as arrogant and insulting.