59% of games sold on steam either use unity or unreal. Not released, but sold. I think it's the general opinion and you're an outlier here. I invite you to post lists of your recently bought games or most played games. I doubt they all have their own custom engine.

Only 10% of new games used a custom engine, and they are by far mostly triple A games from big companies. Unless you just don't play indie games, you have bought unreal or unity games even if you buy less in general.

And yes, that means 10% account for 40% of sales but it's no suprise since having your own engine and a big budget go hand in hand.

It's absolutely insane to actually think we are worse off. Would you rather a walled garden, where only multi million dollar companies can afford to develop games, just because of a few shovelware garbage titles that just get ignored anyways? Do you get a shit game as a gift every Christmas or something? The negatives aren't even affecting anything.

Here are the stats if you are interested. https://www.creativebloq.com/3d/video-game-design/unreal-engine-dominates-as-the-most-successful-game-engine-data-reveals