sportscenter00 agree with some of your perceptions, disagree with others.
I was on the FF side a few rows up and just to the left (from the X side) of where the incident happened. I was probably 20 yards away and looking down on it. I had a pretty clear view, probably better than most of the players unless they were in that part of the field.
What I saw was this. The two kids went hard after the ball on the sideline. At the sideline the FF kid stepped in front of the X kid and shielded the ball. He got his hip into the lower body of the X player and the kid went flying. . .hard. . .into the wall. I saw him leave his feet but only heard the impact. Didn't sound good. However, it is not accurate to say that the FF player shoved the X player into the wall. Most soccer players, this one included, do not have enough muscle mass to shove someone that size into a wall that hard that is probably 5-6 yards away. Momentum was very much a factor. That much directional momentum was present because the X player was not entirely under control. However, it is most likely true that the X player probably would not have hit the wall if the FF player did not step in front him.
I also think you unduly villify FF fans. There was an issue going on between the referee and the FF coach regarding the call. FF fans could hear the conversation from their side and they were upset that the ref was not even willing to listen to the coach. I agree that as a group, they were not mindful enough of the situation with the player. However, some important points you omitted was that someone from the St X side, I believe a coach, was yelling at the FF coach while the FF coach was trying to get the Center to come over and talk with him. THAT brought out a severe case of the boo-birds from the FF side. This went on for a sizable portion of that 2-3 minute time frame you mentioned. The ref finally had to intervene and send the St X person to the sideline as they did not seem to be willing to stop on their own. Even then, if you noticed, a number of the FF JV players went down to the railing by the sideline to see how things were going with him. Some other kids followed them down and I honestly do not know if the motivation of the other kids but the JV players were concerned with his injury. Furthermore, there were a number of people on the FF side who were concerned for the player and were very much relieved to see him finally up and making his way to the bench.
This game has been long gone and over with. Both teams have other fish to fry. I appreciate that you approached this in a mature and tactful manner. However, I do feel as if your response was one-sided and had a tendency to cast a whole group of people (FF parents/fans) in an unfavorable light. My personal opinion is that group villification only makes it easier to disrespect parents/coaches/players/fans of other teams and does not do much to foster sportsmanship. As such, I felt I needed to put my two cents in.