Not so extreme. Extreme would be if I wantonly discarded any Jewish practices which didn’t accord with my personal views on morality.
You like to say that: ?? ????? ???? ????. In fact, it seems that to many of the Avi Weiss type, ?? ????? is in fact a ????–to do it!
In any event, the poskim (maharik, shach, cf. rema, igor) say that by minhagim lo rainu is a raiah. Thus, Rema paskens that women do not shecht since that is the minhag. Beis Yosef asks that lo rainu eino raiah, and shach answers that since it is a minhag, lo rainu is indeed a raiah.
Which makes me wonder. How come none of these liberated women want to become shochtim?