Let's review the evidence:
Sylvie took care of the first version of Kang in Loki with no effort
Ant-Man, who's weak even for a regular person, is talking greasy to the 2nd version of Kang and giving him that work.
And we're supposed to believe that he's worse than Thanos? Who even by the mere mention of his name had all the Avengers shook?
And when you look at other characters it's completely different: Homelander for example gave all the boys that work and they still haven't defeated him.
And Vecna on Stranger Things is still giving the scooby gang the blues
But Kang is getting man-handled by Scott Lang?
So when the Avengers defeat him in a few minutes and are laughing about it eating shawarma at the end of this film or the other one we'll know that the cacs couldn't let him win. Even temporarily.