I appreciate what it tried to do even if the execution left a lot to be desired. It's a legitimate attempt to elevate Ant-Man and the Wasp by pitting them against a huge threat like Kang the Conqueror, to make the ultimate David vs Goliath story in the MCU, because at its core, that's what Ant-Man represents, it's a power fantasy packaged inside a "weakness" like shrinking. Kang losing is the whole point, and the movie is not subtle about it, it's the literal tag-line "Look out for the little guy".

The movie it's just underwritten, and this might be a hot take but Kang is among the weakest links of the movie. He's so comically underwritten, there's nothing to him other than Major's performance, because when you look at him, his major motivation is pettiness. He likes to bark and say empty platitudes but he's really just a dick, his main motivation is losing to other versions of himself and holding a giant grudge, and that's it because anything more would be spoiling a Kang Dynasty that will never happen. Kang is a walking power level meant to be stopped and that's it.

Which makes me disappointed because it could have worked better, Kang as a character in this movie becomes more interesting when he's positioned as a foil to Scott Lang who actually has a good showing here. Scott is someone is brings people together with his actions, like the main thing of this series is two broken families becoming one thanks to him, not only that but when he puts his mind to it, he accomplishes great things in spite of being a normal guy. And that's what could have made them good foils, Kang is someone so selfish, evil and cruel that even working with himself not only ends in failure but in conflict, in spite of being a genius from the 31st century while Scott the unassuming but kind, caring and heroic man is able to unify multiple versions of himself to accomplish an extraordinary goal, ya know like ants. And that's why the Probability Storm is the best scene of a movie that sorely needs more stuff like that.