This tendency to want to be fawned over and treated like some sort of secular saint for doing the minimum it takes to be called a decent human being informs this wonderful display of left-handed tolerance from two stupid imbeciles who can be safely called "parents in name only." As I've said before, I think that the message of the "Lawrence comes out" arc is to want to take two wretched vermin and act as if they're all twelve apostles for grudgingly tolerating the selfish deviant ruining their lives.
Finally, we come to another annoying display of hypocrisy and stupidity: the irritating habit characters have of preaching "stick to your own kind" when dating someone not of that character's ethnic background is proposed. Beginning with Connie's horrible early love life being the direct result of not dating whatever sort of white Canadian of stereotypical French origin she is at any given moment and ending with Paul being made out of snow, the idea of biracial marriage gives Lynn the screaming habdabs. Why, she didn't even have Dawn have a big, sloppy crush on Mike like a kid her age is supposed to because of her romantic apartheid thing.