C29 I Can Only Help You to This Point

Guchenzhe breathed heavily from anger. He carried Xiaoqi in one go and let him face him, asking him word by word: "Why do you keep suspecting that I'm not your biological father!"

"Because you are more stupid than me. I am such a smart child, so I should have a smarter father!"

What, he's actually saying that Guchenzhe is stupid, if he's stupid