We stopped a long time ago allowing customers to bring in their own parts. There is just too much liability. We also make close to 40% on most parts.
Find me a single case where someone installed the parts to original spec that lost a lawsuit like you described. You won't, its basic FUD you are spreading.
How do shops handle situations like this? Do they say, "We can't get the part, and we won't use yours, so we're not going to do it."?
My car has parts you can't buy locally,
There are occasions where a part is on backorder with an undetermined shipping time. Depending on the part, our dealership (and I believe this applies to most all dealerships) have permission to go aftermarket to keep the customer satisfied. Purchasing the part at an Auto Zone or other parts store comes with warranty that often includes labor. Customers bringing their own parts is never allowed.
Ask your insurance liability company. I have neither the time or statistics to satisfy a troll like you. Similarly, I didn't say original spec (you misquoted me).
A lot of GM parts are made in China now, so your guess is as good as mine when it comes to parts quality. The thing is, most shop gives a labor warranty on the parts they sell, so you can bank on that.
Yes there is a lot of overhead, and many of us don't want to pay all that overhead. They are entitled to charge whatever they like, but we are not obligated to like it.Rent, water, electricity, trash, internet, subscription, tool payments, tax, paper, must I go on? Also, unlike office workers, mechanic often do not get a 40 hour / week of work.
^ Got links?
I'm inclinded not to believe chicken little, sky is falling type assumptions. The same argument could have been made for 100 years yet there is a thriving industry in aftermarket parts... unfortunately not being made in the US for the most part.