Since I was namedropped earlier in the thread (thanks @Tez) I felt compelled to post something here.
I think representation is important, and I wouldn’t be inclined to run a historical game that glossed over the historical facts of what it was like to be a member of a group subject to “isms” at that time. I also wouldn’t be inclined to run one that didn’t.
When you put an “ism” into the social contract as allowed content, you immediately open up the expectation that it will be a gameplay factor and you open up the conversation to what is “accurate and allowed” and what is “accurate but not allowed”, and by opening up those things you now have taken on the responsibility for providing it and policing it. This leads to a lot of questions.
Why is this dynamic being included? Do you expect it to enhance the story in some way? Do you have plans to engage with it directly, or will it just be existing in the background? If you have no plans to engage with it directly, what is the benefit of including it? Do you expect people to RP about it? What will that depiction look like? Does that depiction serve to illuminate something about the human experience in a respectful representation or does it serve to create spectacle and story drama purely for entertainment? What will you do about players who are leaning too far into the latter? Can you clearly define where that line is? What will you do if YOU are the one who crossed the line and it’s been brought to your attention?
Regardless, the expectation should be that a game clearly state on the tin exactly what unconscionable things might occur to your character in the course of play. Do not leave players to discover this through play. If my guy could be killed, say they could be killed. If they could be sexually assaulted, say they could be sexually assaulted. If they could be discriminated against, say they could be discriminated against and how it could look. Gritty Games are allowed. Please put the Narrative Facts on the side. I can choose if this is right for my diet.