Panel 1: Connie starts off by pointing out great it would be to be 30 because people are more open-minded. Unlike, say, John Patterson.
Panel 2: Also, men actually seem to want to do domestic stuff like going dishes, helping out with children and so on and so forth. Again, unlike John Patterson.
Panel 3: You see, when they were Liz's age, they were expected to hold down a job AND do the housework. John Patterson only expected her to do the latter while Mike expects Dee to do both.
Panel 4: This causes Elly to spout a non-sequitur about how that caused them to be lard-arsed.
Hypothesis: Connie is rubbing Elly's nose in how lousy John was as a husband and how rotten her son is. Also, Elly will do anything to avoid connecting her horrific diet and her wide rump.