You are wrong. Neither the players, the referees, nor the coach are going to make any changes in response to your bellows from the sideline. They are, however, going to be mad at you - joining a group including your spouse, your friends, and anyone standing close to you. Kids goof, refs goof, coaches goof. Before you shout, picture your next day at work as you are working on a project and in the doorway to your office are a crowd of players, coaches and refs booing you and demanding that you be fired.
Silence Can Be Deadly.
The usual response to your sideline comments is a tug on your shirt from your spouse, a glare, rolling of eyes by your neighbors, and a silent promise by your daughter to change her name and become an orphan. Sort of like in 4th grade when you fell asleep in class and made a funny sound when you startled awake. When silence falls and you are the focus of everyone's attention it may be time to announce that you are overdue at the hospital to perform a lifesaving operation and to slink away at top speed. This Is Still a Game. Despite the fact that each player's family has invested a great deal of time and money in soccer at this level, and they are hoping that soccer will help pay the college bills, it is still a game and if your daughter doesn't enjoy it she will not play well - and maybe not at all.