This is a poor attempt at gift wrapping blatant contempt and disregard for his wife’s autonomy in a joke. He just (proudly!) announced on camera that he coerced her into having a child she did not want in these conditions, and he clearly thinks it makes him charming and charismatic. Beyond vile.
JD Vance: "The Second Lady said, 'Well, you can have one of two things. You can be VP, or you can have a fourth child.' Ladies and gentlemen, I must be pretty persuasive, because I got both."