There's nothing structurally bonded on this car. This is not a Lotus Elise, the steel unibody is welded.

What you are mistaking as "glue" is the caulk used to waterproof the chassis.

Welds in a car will rarely, if ever just "fail". I haven't heard of this happening in an Aveo or a Cobalt let alone a Crossfire.

I think you should find somebody nearby who knows cars and is willing to put some time into examining your car. I feel that you are jumping to conclusions in some ways...