It would probably takes a lot to change my opinion, even if Shion past is really tragic because being in a tough situation and falling in love doesn't give you the right to beat the crap out of someone else unprovoke (no, crying loud is not a justifiable offense). My beef is not really the violent, because I watch Higurashi for that
but the fact that she pick on Satoko instead of the Aunt and Uncle.
Does she really believe that beating Satoshi's sister in front of everybody will make the supposely compasionate brother find you hot, in your sister appearence? hahaha lol