Most of my success in parenting has come from realizing that my kids will forget what they were angry about shockingly fast. This may sound very paternal, but in many cases where they are worked up about something I know to be inconsequential, my goal becomes brief diversion so that they will move on...and it usually works.

Of course, most people on X are not children, but I still have great faith in the ephemeral nature of human emotions. Give them a month or two and they'll be worked up about something else.