(not op) The strongest argument I could make is that DND 5e is not a good system and holds the game back, but even that doesn't really make it "fundamentally a bad game".
I would say, if I wanted to really criticize it, it's puddle deep compared to Pathfinder... but it's still an excellent game. In no way is it a bad game.
I can't throw money at it to compensate the lack of my skills. This is why EA games are so good. /s
A game needs guns that do pow pow for it to be good. Call of duty is a really good game, because guns are cool. /s
This game forces me to read, which is something I can't. /s
This game forces me to think, which is something I can't. /s
All games have insane amount of bugs and lack gameplay. This is the gaming standard. BG3 is different, so I don't like it. /s
The devs actually put in a lot of effort to produce a proper game worth it's price. So, do these devs think they're better then the rest of us or something? Lame. /s
Its some annoying narrator telling you what's happening instead of showing you what's happening. Like it'll say "you are in anguish" and your character just stands there staring at a wall.
DnD this way doesn't translate well to a game.