Is it possible that safety tools might be "a solution that works best for the group"?No I am not offering a replacement solution because I think this effort is very misguided. I am saying this is something to deal with as a group. It isn't something game designers can solve for us. If you have mental health issues, you should seek treatment. If someone at the table is having a problem you should treat them with empathy and find a solution that works best for the group.
[adds to notes]spiders, halflings, gnomes and orphans are all viable subject matter for plot purposes and playing purposes in an RPG
Please, list more things that are viable subject matter!