Is a GMC truck just a dressed up Chevy truck?

I am disappointed that anyone could be confused by this.
Many automakers did the same thing.
A Lincoln or a Mercury was often a fancier Ford.
The Oldsmobile and Buick were fancier than the Chevys. In the 80s, Cadillac offered a fancy version of the Chevy Cavalier. The Cadillac Cimmaron.....
Dodge was a bit more fancy than the comparable Plymouth models.
It was simply a matter of marketing a product to different demographics.
The Cadillac Escalade was and still is a Chevrolet Suburban.
What I'm disappointed about is why people have to be so ignorant and put down another American car maker. Mopar made just as many pieces of **** as any of the rest. In fact, you could argue on a percentage basis they made maybe more due to the fact they made less vehicles then the other "big two". Glass houses and all that, you know? I'm proud to see any older AMERICAN hunk of steel rolling down the road, I don't care what make it is.