With respect your only role has been as a referee. If you ask most people who have had varied roles, the majority of people doing club marks do so fairly. Of course there are some that give a rubbish mark because they lost to a last minute penalty, but these average themselves out at the end of the season. From my times as a RefsSec I knew who the best referees were from the marks because they consistently got good marks and over multiple seasons, so the outlying whinges from clubs were effectively cast aside.
The same applies at level 4, the first level where club marks are looked at alongside observations from senior observers. It is very, very rare for a referee to be A for observers and E for clubs, or even D, or vice versa. It is far more usually A/B, B/A, etc, and the club marks align closely to the observations. The year I went up from 4-3 I averaged almost a red card a game and still finished top on clubs, so it is a myth that referees that do their jobs properly always get clobbered by clubs.
In any case, as I've asked you several times before, what is the alternative (bearing in mind there aren't enough observers to go around promotion candidates let alone every referee)? There simply aren't any, so club marks are here to stay I'm afraid whether people like them or not.