I... No. I'm not doing this.
I seriously doubt that there was a 'conspiracy' among gaming journalists to tell gamers that they were acting entitled back when the ME3 ending controversy broke. More likely, people who work in the same industry (gaming journalism), that follow the same events and that listen to each other's coverage... end up saying similar stuff as each other. One of them called us entitled. A few others saw the piece, agreed with it(*), and wrote their own version.
That's all that needs to have happened, not some phantom conspiracy.
(*) A note for the record - That was their opinion, not mine. I'm not stating my own opinion on how gamers were acting in the aftermath... because, well, there were a bunch of different reactions, and trying to give them all one sweeping description is not going to work.