One big reason for the decline of video games in general and the tired culture war nonsense making its way into the video game marketplace is that truly talented and groundbreaking developers in the 90s and early 2000s were disparaged by a community of trolls and gatekeepers within the gaming industry.
One easy example is Mr. Derek Smart, a pioneer who basically invented the indy game genre but received an unbelievable amount of hate and trolling simply because he designed games that were too intelligent for the average player. Developers like Mr. Smart were chased out of the market and all you have left is garbage now.