GATE is the equivalent of watching the world heavy weight champion of the world beat a 90 year old grandmother with osteoporosis to death in the Ring.
I really don't care about the moralizing and would be neocolonialism of the series beyond an eye roll. 99% of what make's GATE suck is how everything is a walk over the for main characters. Everything is effortless and boring. Nothing is cool. Grandma getting beat to death is a foregone conclusion and not even fun as a spectacle.

This shit really prefigured narou-kei isekai.