From what I understand, the only way to cope in the moment is to try and completely flatten out your emotional state before hand and mentally prepare yourself to try and dampen the blow when it happens. But really, this'll only work if you know you're going to experience RSD ahead of time, and due to the nature of RSD, you don't always know when it'll happen. So really in order for this to be effective, you need to be in a constant unemotional/emotionally detached state, which obviously leads to it's own problems of you acting like an insensitive asshole at times, and ironically enough will probably lead to many more situations that can trigger RSD lol. And of course you're still only dampening the blow, not stopping it, so it'll still going to have an effect on you. There's also no guarantee you'll even be successful in dampening the blow.

The only other option is to be a complete ass-kisser so that no one is ever mean to you, which of course is not guaranteed to work either. So if people don't want to change their behavior to accommodate ND comrades (within reason of course), they're going to deal with us either being ass-kissers, assholes or absent from engaging with everyone else, at least on certain topics.