That is my experience. I steadfastly refused to buy anything but American. But after an 1988 Baretta whose motor blew 2 days out of warranty; an 1989 Cavalier that was in the shop for repairs 125 days in 9 months; and a ‘94 Caprice that had 7 alternators replaced in it’s first year that was it. I might be a slow learner, but even I got the message. The quality was substandard and they had defective parts suppliers that they did not discipline for bad parts and continued to replace defective parts with defective parts that would soon fail. Their engineering designs were not made to be repaired easily and repairs were often and very expensive.
I would not take a GM if they gave me one for free. I find it unfortunate that they are in their current prediciment, but my experience was not unusual and there are many, also burned, who will not buy them again.
The domestics are notorious for their toxic relationships with their suppliers. They try to squeeze every last nickel of cost out of them, driving some suppliers into bankruptcy. The surviving suppliers respond by making lousy parts to meet the unreasonable cost demand. Well run companies have a symbiotic relationship with suppliers, the success of one is the success of the other. Not Detroit.