From that last explanation of symtoms I got the impression it is definatly a drivetrain problem.
But this statement is a little confusing because it shouldn't be starting in gear anyway, but it seems as though he is describing a froze up converter.
"Let's say u have a manual trans And u start your car and butt up the front bumper to a building. Now put it in 3rd gear, hold the brakes and keep parking brake on and me out the clutch. What happens? It dies instantly. ( cue smart comments) now obviously no one would do this. Keep applying the brakes with the vehicle in gear try to start it. Nothing Happens. Now have some friends help u push it away from said building. Put it in neutral And start it 3 hrs later."