Is this the right way to treat a child?

So ever since my step-dad came along I have never done so much chores. This is my list: clean my room (vacuum, sweep, mop, dust) mine and bros bathroom: counter, bathtub, sweep, mop downstairs: sweep, mop living room if my dishes week (me and brother alternate) sink, counter, stove, table, sweep, mop kitchen, sweep, mop laundry room. Me and my brother alternate who sweeps and mops stairs and who sweeps and mops landing, do our own laundry, and pick up dog poop. So really we clean everything except their room and their bathroom. And my step dad has this dumb point system that whenever we dont do something we are told to do or have what they feel is an attitude (in my world it's speaking my mind whether I'm raising my voice or not) he takes something or various things away and we have to get 10 points to get something back and honestly there nothing we can do to gain these points because we already have all the chores in the house and this is what they do Mom: sleep (nightshifts) work and when off do school work and watch TV. Step dad - work from 4am to 11am then sits on the computer and watches tv and does the yard when he gets pissed. I don't think this is right, I feel like a slave but less intense then the olden days obviously.