O2 Sensor problems of the 2012 Chevrolet Equinox

Briefly, for the last month and a half I have experienced rough idle on start and rough idle & stall with the car losing power and going dead at red lights and in traffic while in drive. I took the car to the auto mechanic and stored codes suggested replacing O2 sensors, the catalytic converter and a tune-up would resolve the issue; I replaced all of the above to the tune of 1400. 00; the issue of rough idling, stall & losing power, going dead at the light/ sitting in traffic has not resolved. The 2012 Equinox is not safe to drive; it just keeps stalling and going dead/losing power while in drive. I have spent almost 1400. 00 trying to diagnose and fix this issue since December 1. My car does not have the cel but still idles roughly, stalls and loses power/stops randomly at red lights and in traffic. I have been unable to safely use the 2012 Equinox for approximately three out of the four weeks of December. Out of frustration I googled my experiences with the car and discovered that this apparently is a common issue that was found in the 2011 model (see NHTSA id# 10430919; 10437891; 10499684 & 10413320. Recall#11195 & 12312. Bulletin #pi0562, pi0202a, pip4716 & pi0469). Apparently this issue was not fixed or addressed in subsequent models as I have been unable to locate a service bulletin or recall although my car a 2012 Chevrolet Equinox is having the same issue. The consumer should not have to pay 1,000's of dollars diagnosing and fixing known manufacture defects. Subsequent vehicles made after the issue was found in th 2011 should have been fixed or should be covered under service bulletins & recalls especially since the car idles rough when starting, loses power and cuts off while in drive with your foot on the brake in stop & go highway traffic or at street red lights- this is very unsafe and can result in an unnecessary accident or even god forbid a fatality.