At the risk of being overly dismissive, this is a blatant attempt to capitalize on the success of the original Space Battleship Yamato, without any understanding of what made it work. The story and the central conflict between humans and an alien race called "the gods" is paper thin and unengaging. The aliens are a faceless menace, you only ever see their UFOs or humans being mind controlled by them, and it makes them seem unthreatening. The film makes no attempt to explain their goals or why this war is being fought, other than a vague sense that humanity became too technologically advanced. The settingis so vague and poorly thought out that it feels like being dropped into episode 8 or 9 of a 12 episode TV series, like you've missed tons of important setup and context.

The characters are boring and largely unlikable, and big plot twists involving characters being killed or turned into spies by the aliens fall flat because of how uninvested the viewer is in what's going on. Nudity and gore are used gratuitously for shock value, as opposed to being used sensibly and realistically for the setting.

Aside from some pretty good action animation, there's nothing to recommend here. Even the occasionally cool action is just empty calories, spectacle for a story that was never going to go anywhere.