Quote: Until there is a mercy rule in place, I would argue again that score, dominance, gender, size, skilled club players vs not so-skilled club players (not sure why you even made that point but whatever), etc in theory should not matter in a game for you the official.
Here is a major part of the problem. What fans and coaches do not understand is the following quote from the advice to Referees:
"The referee’s decision as to whether a player’s action is trifling or not is affected considerably by the skill level of the players."
What is a foul, and what is a trifiling offense that should not be called, is to be determined by the skill level of the players. Whether you like it or not, that is what we as referees are told to do, and most good referees take that into consideration when doing a match.
To answer your question about the mercy rule, obviously you are not looking at it from the player point of you, only your own narrow view. What do you think those kids are thinking when the score is 10-0 at half time and the other team is embarassing them by playing keep away for 40 minutes? That isn't competition, that isn't a learning experience, that's being humiliated and no one wants to see that.