Thank you for your reply. Though I have to admit, Roleplay may still be present to some degree even in non-roleplay and OOC orgs, the roleplay is almost always based on a meme, OOC theme or simply done in an unrealistic manner. By any stretch of the definition, the example you listed with Anime girl RP, is not and could not be considered RP as it is utterly unrealistic and is mainly just FailRP / Non-RP with a theme. As far as the sweatshop goes, that is actually something which could be considered roleplay, however, I doubt it was done realistically (due to the fact it was made by an organization with an OOC theme, revolving solely around anime memes and banter), ie, building the sweatshop, RPing the production of merchandise under dangerous conditions, treating the workers in a manner appropriate to the setting, talking and acting as if it was an actual illegal manufacturing facility where human safety is neglected and labor laws are broken.
To address your argument that the server is here to have fun on. Fun is a very relative term and to many in the Roleplay community, it is fun to roleplay realistically and have real life-like interactions with deep and developed characters with their own unique stories, backgrounds, and goals that they actively strive towards. Fun is a very fluid concept and may mean something different to a lot of people. However seeing as this is a Serious Roleplay server, yes, literally says that in the title of the server itself (Perpheads PERP [Workshop DL|Highly Customized|Serious RP|TDMCar ) you could come to the conclusion that the playbase would share this same view on what is fun and why they might wish to roleplay.