[USAF80]

I wouldn’t put it past the plane to include large pieces even with a direct hit. Plunge in perfectly and the fuselage may stay together, as the weak wings tear off. Then the fuselage may disintegrate just after impact.

The wings are pretty strong. Their interior structure is braced and the metal is usually stronger that the rest of the airframe. You ever see those "no step" areas outlined on a wing? If so then this is thinner material than the wings. If you walk there you would damage the skin.

The strongest part of the jet is the wing box, this has to take the stress of the wings flexing and the impact of landings. In a water landing or gear up landing the engines tend to rip off first.

[the OlLine Rebel]

Weak is a relative statement. The thin cross section makes them comparatively weak, and they need to flex, not be static. Witness the Pentagon hit by the 757. Note too the engines themselves - not the mounting - tend to withstand accidents the best.