I suppose this might be related to nerd culture decades ago. Scifi, fantasy and comic books for example were much more niche, you would be ostracized or ridicul

I suppose this might be related to nerd culture decades ago. Scifi, fantasy and comic books for example were much more niche, you would be ostracized or ridiculed for showing interested in them openly. That was before those genres were appropriated by the mainstream. Before that, nerds would (with great effort) seek out other nerds in order to share the same appreciation for the hyper specific interests they had. Now the average person discovered the joy of such hyper specific content, instead of the same lowest most common denominator mainstream shit. But it's also generational, older generations are very much constrained in their cultural consumption. What you described hasn't happened yet I don't think, but it might once everyone who still watches TV is dead.