Because it is negative.
Literally never met a player who enjoys being railroaded.
Right. It’s no longer a collaborative experience and is simply the referee telling the players a story as some kind of dinner theater with dice. That’s why players hate it and it’s only talked about negatively.
As if, you, personally, get to speak for tens and hundreds of thousands of people? And your personal experience is all-inclusive and authoritative? Please spare us.
It is not only spoken of negatively. If it were only spoken of negatively, you wouldn't have anyone to argue with over it!
There's a few people here that feel so strongly about it, they feel a desire to bring it up repeatedly to say how wrongity-wrong, with wrong sauce, it is, and they make a big stink and people remember that. There is a resulting perception that the only things said are ever negative.
Meanwhile, folks who don't mind it don't usually need to bring it up, and so their opinions are generally overlooked.