By that logic any depiction of any form of supremacy, or otherism as a concept, regardless of intent, is detrimental. So, homogeneity only? Commentary is an excuse? Critiquing about the problem is as bad as endorsing it?
It sounds like you're not mad at Fallout specifically, but one of the core tropes of literature as a genre, and basically the entire concept of social satire.
You're trying to dismantle the echo chamber by amplifying voices inside to the point that they think what they're saying no longer or has never made sense, and by extension alienate folks outside looking in.
It sounds like an interesting strategy, and might be fun if that's what your about, but I doubt it's very effective. I think the risk of it backfiring is probably too high to see a very good return on your effort, especially without any way to verify positive outcomes. Maybe you're different, but I could also see the toxicity of the cynicism required to maintain the strategy decompartmentalizing and seeping into other parts of my life, potentially causing me to alienate my friends and family as well as affecting my mental health.
I any case, I got respect for anyone willing to stick to their guns for what they think is right, especially if it's for positive social change. I just hope you've weighed the consequences of your method.