Having been a former referee, I can tell you that there's nothing wrong with being passionate about your kids sports.what's wrong is when people react horribly to mistakes, or have such a twisted view of reality they can't accept anything other than perfection.
What's wrong are when nut jobs verbally assault officials because of a missed call or a completely legit call they just can't accept cuz everyone's kid is perfect. And most of the the officials are also volunteers or being paid very little and sometimes maybe only a few years older than the kids playing the game. Not saying this is you, just saying I've seen it, had it done to me and boy it feels great having some f*** wad 40 year old yell at you when you're 14 because you called a penalty on his kid in a meaningless exhibition game.
Get over it.