Because they will destroy the gaming world we know and love. Look what happened with cell phone mobile games. In the begging we got cool shit on iphone and android, then it all went f2p and its now full of shovelware and ad supported junk. When is the last time you seen a iphone game like infiity blade? One where it was high quality but you had to pay for? They don't exist unless they are console ports. Same things happening to consoles if we aren't careful. When is the last time we had thrilling good single player FPS games? We really haven't for a while. Think back to the x360/ps3 era and how many full on trilogies or one of games we had that were shooters with stories. Full on 8-20 hour campaigns with multiplayer. Now they don't give you a campaign or if they do its measly 5-6 hours. Most new fps (outside of existing series still being made, ala doom/metro/borderlands) don't even have single player.
I loved buying Kilozone2, Resistance, Cod2-4,waw, mw2, battlefield Vietnam/2/3/bad company/bc2/bf3, Bioshock, Crysis, etc...) all had big campaigns and multiplayer. You got your monies worth. Some even had bots and couch co-op.
When one of those games multiplayer servers were taken offline it meant that the game could still be played. Also unlocks weren't tied to paying real money, there was no devoting your life to moving forward. You could do so very fast. The games were made to have fun not for extracting money using physiological warfare.
I see kids getting hooked on f2p trash and don't touch real games. This means less sales which means less real games It's a vicious cycle. Eventally real games will be niche. You can see this in the music and movies now. Its all slut pop and nuRap. on every top list, no rock, metal, adult pop, old school style hip hop, prog rock, blues, jazz, etc... Movies, its all super hero and disney, films of substance or legit new stories are not being made much at all, but both of those are a tangent that needs its own write up. I digress. back to games.... my point is everything is being compressed to less options, less choice, less substance and fewer creators. It is happening everywhere. The digtial age has serious side effects that we were not prepared for. If people stop buying real games then no new games will be made. Publishers will always take the path of least resistance and green light stuff that doesn't take much effort and makes the most money.
Now I just mentioned shooters, take that and move it to other genres and you get the same thing. These games will have no history as like overwatch they will be pulled, erased from existence, just in time for the next "shiney". I guess thats what gen z wants? The instant gratification gen? Call me old man, or out of touch, idgaf! I like playing games and going back to them years later. I can't do that with gaas.