Yes, I'm sorry you got screwed,, but every manufacturer has a story just like this one - I'm not really a 'GM Guy' but I don't think this is a fair brush to paint them with.
So many things went wrong that it’s hard for me to think I’m a huge outlier. Though, CR does currently rank Chevrolet (but not GMC) above Tesla for reliability:
And the Bolt is their most reliable car, apparently.
Perhaps I am being unfair, or perhaps they improved. Still, given the nature of the issues I hit and continue to hear about, I’ll continue to avoid them.