Product review (2 stars): Fix it, don't buy a new one.
As a maintenance mechanic I have to deal with parts that are designed by engineers and upgraded by guys like me that have to deal with this junk in the real world. So what did I do? A tube of clear 5 minute epoxy! Clean the glass shelf off and the surface of the broken part that fits against the glass. Make sure all parts are dry.  Replace the glass and mix the epoxy and coat the top of broken part. Insert the back end of the part into the fridge and raise it up in contact with the glass lining up the front broken end and hold it there until it sets.