Don't know why everyone is hung up on Ant-Man putting up a good fight against Kang.
Sometimes Mr. Fantastic solos Doom. Sometimes the Invisible Woman solos Doom. Sometimes the Thing solos Doom. Sometimes the Human Torch solos Doom. Sometimes it takes the entire Fantastic Four to take down Doom. Sometimes it takes the Fantastic Four, the X-Men, the Avengers, Spider-Man, and a dozen or so other heroes to take down Doom.
I was a God, Valeria. I found it...beneath me. - Dr. Doom
https://i.imgur.com/0EJvC4l.jpg