The Vietnam references were too bloody heavy-handed
The Americans looking for the entrance to the lab were too much like shitty cartoon villains, especially the guy holding the puppy at gunpoint
New Asia was nothing but a shitty Vietnam expy and not the great and powerful enemy of the US it should've been. The Americans can beach its borders and shoot em up without any consequences, how are they the great enemy the US has a hard time against?! I somehow have the suspicion, that portraying the Vietnam expy as weak and pathetic was done to placate the Chinese censors or something.
The victory was too easy, once cruise missiles are fired, they're gonna fly until they hit the target or are shot down, blowing up the base that launched them shouldn't have brought them down.
Robo-Jesus bringing back his mom only to have her blown up with the droid control station felt incredibly pointless.
Film Too heavy-handed Vietnam references strike again