>Kang talked about beating multiple avengers specifically Thor. Instead he got dragged off by “advanced ants” and then lost his final battle with Antman. 

1. That Kang was jumped, stripped of his major weapon (time travel), and left to die in a realm he couldn't even identify. 

2. That Kang found civilization in a strange realm, conquered the majority of it, built a scientifically advanced society from memory, and managed to get some power to his suit  (this entire point is probably the most impressive of Quantumania. Fucking understatedly awesome).

3. Common sense should tell anyone: a big ass ant could easily kill a human. The math has already been done: a human sized ant would be able to press five tons or so with its jaws and run as fast as a car on the freeway. Kang fought \~10 that were triple the size of humans, all of which were sentient and wielding fucking lasers.

4. Kang's "low powered shield" took two massive hits from Giant Man (who one punched a Chitauri Leviathan), and then held against a full frontal assault against said ants, until MODOK suicide bombed it. 

5. After the ants broke through Kang's shield and he yelled 'no'...he kept fucking killing the giant intelligent scary ants. They ran away from, it's how he goes after Scott at the end.

This was just a basic general viewing of the movie lays this bare. Comic and sci fi audiences were once places one could go to meet people who were like-minded individuals who took the time to think and consider. Modern audiences make me sad. 

  
FYI: Scott Lang kicks the absolute, ever loving fuck out of Dr. Doom, solo. Makes him scream out loud. Because anyone or anything intelligent enough to use Pym Particles is insanely dangerous. Can't wait for the fankids to complain about "the weakest Avenger" when that happens on screen.