There is at least on player on every MLB team that fans can't stand having to watch. Many different reasons lead to fans wanting players off of their team.
In some cases, the player is just flat out not performing. Other players are overpaid and they are not coming close to living up to their contracts. There are also some situations in which players just have bad attitudes or have turned a cold shoulder to the fans or front office.
If fans had a say, they would try to get the following players off of their favorite team's roster by any means possible, whether it be a trade or just dropping the player.