You could have left it there and it would have been fine
So if they don’t agree with you, then that is the issue.
On your specific points
1) I didn’t have a discussion with you on Goodwillie, but can see how some may have considered that in this country you’re innocent until proven guilty.
Also to be clear, I’m not interested in going into this, the player is no longer with the club
2) Has there been a differing opinion on the loving cup participation?
3) Slave Labour may be harsh. I agree that this may seem to be worthy of a paid role, however there are many roles that people volunteer for in the club, from setting up schoolboy pitches at Harlaw, to being a ballboy on game days. If this is a role that suits someone then they apply, if not then the club may need to adopt a different approach.