I fully support feeling good about buying American. But you have to get it right first, and buying GM/Chrysler is the very opposite of buying American, it's buying from companies that shamelessly screw over American taxpayers dollars as if they're somehow entitled to our money for their own problems. That's the opposite of the American ideal - you screw up, you take responsibility, you go under.
This doubly applies for a car (like the Camaro) that isn't even made domestically - so it's not even benefiting the American workers, just the lining the pockets of the whiny, begging corporates.
Not against the OP buying a Camaro, btw, the OP can do whatever he wants with his own money. Just against the statement that the Camaro is a "feel-good" domestic, which it certainly is not.