Bullets can't explosively depressurize a commercial jetliner cabin.
Bullets can't depressurize a commercial jetliner cabin period.
The airplane isn't a can soldered shut on the runway. No, an airplane is a friggin' seive, and the air leaking out is constantly replenished by air taken from the compressor stage of the jet engines, and that air flow is much greater than the leak rate through a teenie bullet hole.
Nope, considerations of cabin depressurization are completely irrelevant to discusssions of denying people their Second Amendment freedoms merely because of the mode of transportation they choose.
As far as I can tell, the Second Amendment doesn't allow any "tranportation mode" exceptions that can be expanded to incude air travel. Can somebody cite what part of the "shall not be infringed" clause that permits this?