You seem to be hung up on the immersion aspect, but if you break down the request all the OP is asking for an option that would improve their personal enjoyment of the game not at the cost of anyone else. Their request seems far more reasonable then asking SE to not release certain glamour options or to remove / restrict others.
I support this request not because of immersion, I support it because at the core I agree with more options that allow players to enhance their gameplay expereince, especially when those options have minimal impact on the overall game. We have other options in the game such as the mute performance, blacklist players, language filters this option would simply be able filter / option that puts more control in the hands of players to avoid certain things they do not enjoy. Which inherently is not wrong, sure the reasoning behind the request may be based around bigotry or intolerance but that is an assumption, and it is not fair to assume such. If we look at the request at the base level it is not that unreasonable if you remove the personal factors.
Simply boils down to another option akin to blacklisting, performance muting, and language filter, just another tool that allows players to avoid things that may impact their enjoyment on a personal level. Is that such a bad thing?